| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-NOBMI2,X86-BASELINE |
| ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+cmov,+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-NOBMI2,X86-BMI1 |
| ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+cmov,+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-NOBMI2,X86-BMI1 |
| ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+cmov,+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-BMI2 |
| ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+cmov,+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-BMI2 |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-NOBMI2 |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-NOBMI2 |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-NOBMI2 |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-BMI2 |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-BMI2 |
| |
| ; Patterns: |
| ; c) x & (-1 >> y) |
| ; d) x << y >> y |
| ; are equivalent, but we prefer the second variant if we have BMI2. |
| |
| ; We do not test the variant where y = (32 - z), because that is BMI2's BZHI. |
| |
| ; ---------------------------------------------------------------------------- ; |
| ; 8-bit |
| ; ---------------------------------------------------------------------------- ; |
| |
| define i8 @clear_highbits8_c0(i8 %val, i8 %numhighbits) nounwind { |
| ; X86-LABEL: clear_highbits8_c0: |
| ; X86: # %bb.0: |
| ; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-NEXT: shlb %cl, %al |
| ; X86-NEXT: shrb %cl, %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: clear_highbits8_c0: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl %esi, %ecx |
| ; X64-NEXT: movl %edi, %eax |
| ; X64-NEXT: shlb %cl, %al |
| ; X64-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NEXT: shrb %cl, %al |
| ; X64-NEXT: # kill: def $al killed $al killed $eax |
| ; X64-NEXT: retq |
| %mask = lshr i8 -1, %numhighbits |
| %masked = and i8 %mask, %val |
| ret i8 %masked |
| } |
| |
| define i8 @clear_highbits8_c2_load(ptr %w, i8 %numhighbits) nounwind { |
| ; X86-LABEL: clear_highbits8_c2_load: |
| ; X86: # %bb.0: |
| ; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NEXT: movzbl (%eax), %eax |
| ; X86-NEXT: shlb %cl, %al |
| ; X86-NEXT: shrb %cl, %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: clear_highbits8_c2_load: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl %esi, %ecx |
| ; X64-NEXT: movzbl (%rdi), %eax |
| ; X64-NEXT: shlb %cl, %al |
| ; X64-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NEXT: shrb %cl, %al |
| ; X64-NEXT: retq |
| %val = load i8, ptr %w |
| %mask = lshr i8 -1, %numhighbits |
| %masked = and i8 %mask, %val |
| ret i8 %masked |
| } |
| |
| define i8 @clear_highbits8_c4_commutative(i8 %val, i8 %numhighbits) nounwind { |
| ; X86-LABEL: clear_highbits8_c4_commutative: |
| ; X86: # %bb.0: |
| ; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-NEXT: shlb %cl, %al |
| ; X86-NEXT: shrb %cl, %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: clear_highbits8_c4_commutative: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl %esi, %ecx |
| ; X64-NEXT: movl %edi, %eax |
| ; X64-NEXT: shlb %cl, %al |
| ; X64-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NEXT: shrb %cl, %al |
| ; X64-NEXT: # kill: def $al killed $al killed $eax |
| ; X64-NEXT: retq |
| %mask = lshr i8 -1, %numhighbits |
| %masked = and i8 %val, %mask ; swapped order |
| ret i8 %masked |
| } |
| |
| ; ---------------------------------------------------------------------------- ; |
| ; 16-bit |
| ; ---------------------------------------------------------------------------- ; |
| |
| define i16 @clear_highbits16_c0(i16 %val, i16 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits16_c0: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits16_c0: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzwl %cx, %ecx |
| ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits16_c0: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: shll %cl, %edi |
| ; X64-NOBMI2-NEXT: movzwl %di, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits16_c0: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: shlxl %esi, %edi, %eax |
| ; X64-BMI2-NEXT: movzwl %ax, %eax |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i16 -1, %numhighbits |
| %masked = and i16 %mask, %val |
| ret i16 %masked |
| } |
| |
| define i16 @clear_highbits16_c1_indexzext(i16 %val, i8 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits16_c1_indexzext: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits16_c1_indexzext: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzwl %cx, %ecx |
| ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits16_c1_indexzext: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: shll %cl, %edi |
| ; X64-NOBMI2-NEXT: movzwl %di, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits16_c1_indexzext: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: shlxl %esi, %edi, %eax |
| ; X64-BMI2-NEXT: movzwl %ax, %eax |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-BMI2-NEXT: retq |
| %sh_prom = zext i8 %numhighbits to i16 |
| %mask = lshr i16 -1, %sh_prom |
| %masked = and i16 %mask, %val |
| ret i16 %masked |
| } |
| |
| define i16 @clear_highbits16_c2_load(ptr %w, i16 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits16_c2_load: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: movzwl (%eax), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits16_c2_load: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzwl (%ecx), %ecx |
| ; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx |
| ; X86-BMI2-NEXT: movzwl %cx, %ecx |
| ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits16_c2_load: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movzwl (%rdi), %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits16_c2_load: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movzwl (%rdi), %eax |
| ; X64-BMI2-NEXT: shlxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: movzwl %ax, %eax |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-BMI2-NEXT: retq |
| %val = load i16, ptr %w |
| %mask = lshr i16 -1, %numhighbits |
| %masked = and i16 %mask, %val |
| ret i16 %masked |
| } |
| |
| define i16 @clear_highbits16_c3_load_indexzext(ptr %w, i8 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits16_c3_load_indexzext: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: movzwl (%eax), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits16_c3_load_indexzext: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzwl (%ecx), %ecx |
| ; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx |
| ; X86-BMI2-NEXT: movzwl %cx, %ecx |
| ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits16_c3_load_indexzext: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movzwl (%rdi), %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits16_c3_load_indexzext: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movzwl (%rdi), %eax |
| ; X64-BMI2-NEXT: shlxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: movzwl %ax, %eax |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-BMI2-NEXT: retq |
| %val = load i16, ptr %w |
| %sh_prom = zext i8 %numhighbits to i16 |
| %mask = lshr i16 -1, %sh_prom |
| %masked = and i16 %mask, %val |
| ret i16 %masked |
| } |
| |
| define i16 @clear_highbits16_c4_commutative(i16 %val, i16 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits16_c4_commutative: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: movzwl %ax, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits16_c4_commutative: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzwl %cx, %ecx |
| ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits16_c4_commutative: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: shll %cl, %edi |
| ; X64-NOBMI2-NEXT: movzwl %di, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits16_c4_commutative: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: shlxl %esi, %edi, %eax |
| ; X64-BMI2-NEXT: movzwl %ax, %eax |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i16 -1, %numhighbits |
| %masked = and i16 %val, %mask ; swapped order |
| ret i16 %masked |
| } |
| |
| ; ---------------------------------------------------------------------------- ; |
| ; 32-bit |
| ; ---------------------------------------------------------------------------- ; |
| |
| define i32 @clear_highbits32_c0(i32 %val, i32 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_c0: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_c0: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl $32, %ecx |
| ; X86-BMI2-NEXT: subl %eax, %ecx |
| ; X86-BMI2-NEXT: bzhil %ecx, {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_c0: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl %edi, %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_c0: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $32, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhil %eax, %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i32 -1, %numhighbits |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| |
| define i32 @clear_highbits32_c1_indexzext(i32 %val, i8 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_c1_indexzext: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_c1_indexzext: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl $32, %ecx |
| ; X86-BMI2-NEXT: subl %eax, %ecx |
| ; X86-BMI2-NEXT: bzhil %ecx, {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_c1_indexzext: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl %edi, %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_c1_indexzext: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $32, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhil %eax, %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %sh_prom = zext i8 %numhighbits to i32 |
| %mask = lshr i32 -1, %sh_prom |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| |
| define i32 @clear_highbits32_c2_load(ptr %w, i32 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_c2_load: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: movl (%eax), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_c2_load: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movl $32, %edx |
| ; X86-BMI2-NEXT: subl %ecx, %edx |
| ; X86-BMI2-NEXT: bzhil %edx, (%eax), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_c2_load: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl (%rdi), %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_c2_load: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $32, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhil %eax, (%rdi), %eax |
| ; X64-BMI2-NEXT: retq |
| %val = load i32, ptr %w |
| %mask = lshr i32 -1, %numhighbits |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| |
| define i32 @clear_highbits32_c3_load_indexzext(ptr %w, i8 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_c3_load_indexzext: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: movl (%eax), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_c3_load_indexzext: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movl $32, %edx |
| ; X86-BMI2-NEXT: subl %ecx, %edx |
| ; X86-BMI2-NEXT: bzhil %edx, (%eax), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_c3_load_indexzext: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl (%rdi), %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_c3_load_indexzext: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $32, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhil %eax, (%rdi), %eax |
| ; X64-BMI2-NEXT: retq |
| %val = load i32, ptr %w |
| %sh_prom = zext i8 %numhighbits to i32 |
| %mask = lshr i32 -1, %sh_prom |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| |
| define i32 @clear_highbits32_c4_commutative(i32 %val, i32 %numhighbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_c4_commutative: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_c4_commutative: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl $32, %ecx |
| ; X86-BMI2-NEXT: subl %eax, %ecx |
| ; X86-BMI2-NEXT: bzhil %ecx, {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_c4_commutative: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl %edi, %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_c4_commutative: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $32, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhil %eax, %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i32 -1, %numhighbits |
| %masked = and i32 %val, %mask ; swapped order |
| ret i32 %masked |
| } |
| |
| ; ---------------------------------------------------------------------------- ; |
| ; 64-bit |
| ; ---------------------------------------------------------------------------- ; |
| |
| define i64 @clear_highbits64_c0(i64 %val, i64 %numhighbits) nounwind { |
| ; X86-BASELINE-LABEL: clear_highbits64_c0: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl $-1, %eax |
| ; X86-BASELINE-NEXT: movl $-1, %esi |
| ; X86-BASELINE-NEXT: shrl %cl, %esi |
| ; X86-BASELINE-NEXT: xorl %edx, %edx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: jne .LBB13_1 |
| ; X86-BASELINE-NEXT: # %bb.2: |
| ; X86-BASELINE-NEXT: movl %esi, %edx |
| ; X86-BASELINE-NEXT: jmp .LBB13_3 |
| ; X86-BASELINE-NEXT: .LBB13_1: |
| ; X86-BASELINE-NEXT: movl %esi, %eax |
| ; X86-BASELINE-NEXT: .LBB13_3: |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: clear_highbits64_c0: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl $-1, %esi |
| ; X86-BMI1-NEXT: movl $-1, %eax |
| ; X86-BMI1-NEXT: shrl %cl, %eax |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovel %eax, %edx |
| ; X86-BMI1-NEXT: cmovel %esi, %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits64_c0: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movl $-1, %eax |
| ; X86-BMI2-NEXT: shrxl %ecx, %eax, %esi |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %cl |
| ; X86-BMI2-NEXT: cmovel %esi, %edx |
| ; X86-BMI2-NEXT: cmovnel %esi, %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits64_c0: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movq %rsi, %rcx |
| ; X64-NOBMI2-NEXT: movq %rdi, %rax |
| ; X64-NOBMI2-NEXT: shlq %cl, %rax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits64_c0: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $64, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhiq %rax, %rdi, %rax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i64 -1, %numhighbits |
| %masked = and i64 %mask, %val |
| ret i64 %masked |
| } |
| |
| define i64 @clear_highbits64_c1_indexzext(i64 %val, i8 %numhighbits) nounwind { |
| ; X86-BASELINE-LABEL: clear_highbits64_c1_indexzext: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl $-1, %eax |
| ; X86-BASELINE-NEXT: movl $-1, %esi |
| ; X86-BASELINE-NEXT: shrl %cl, %esi |
| ; X86-BASELINE-NEXT: xorl %edx, %edx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: jne .LBB14_1 |
| ; X86-BASELINE-NEXT: # %bb.2: |
| ; X86-BASELINE-NEXT: movl %esi, %edx |
| ; X86-BASELINE-NEXT: jmp .LBB14_3 |
| ; X86-BASELINE-NEXT: .LBB14_1: |
| ; X86-BASELINE-NEXT: movl %esi, %eax |
| ; X86-BASELINE-NEXT: .LBB14_3: |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: clear_highbits64_c1_indexzext: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl $-1, %esi |
| ; X86-BMI1-NEXT: movl $-1, %eax |
| ; X86-BMI1-NEXT: shrl %cl, %eax |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovel %eax, %edx |
| ; X86-BMI1-NEXT: cmovel %esi, %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits64_c1_indexzext: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movl $-1, %eax |
| ; X86-BMI2-NEXT: shrxl %ecx, %eax, %esi |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %cl |
| ; X86-BMI2-NEXT: cmovel %esi, %edx |
| ; X86-BMI2-NEXT: cmovnel %esi, %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits64_c1_indexzext: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movq %rdi, %rax |
| ; X64-NOBMI2-NEXT: shlq %cl, %rax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits64_c1_indexzext: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $64, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhiq %rax, %rdi, %rax |
| ; X64-BMI2-NEXT: retq |
| %sh_prom = zext i8 %numhighbits to i64 |
| %mask = lshr i64 -1, %sh_prom |
| %masked = and i64 %mask, %val |
| ret i64 %masked |
| } |
| |
| define i64 @clear_highbits64_c2_load(ptr %w, i64 %numhighbits) nounwind { |
| ; X86-BASELINE-LABEL: clear_highbits64_c2_load: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %edi |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl $-1, %eax |
| ; X86-BASELINE-NEXT: movl $-1, %edi |
| ; X86-BASELINE-NEXT: shrl %cl, %edi |
| ; X86-BASELINE-NEXT: xorl %edx, %edx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: jne .LBB15_1 |
| ; X86-BASELINE-NEXT: # %bb.2: |
| ; X86-BASELINE-NEXT: movl %edi, %edx |
| ; X86-BASELINE-NEXT: jmp .LBB15_3 |
| ; X86-BASELINE-NEXT: .LBB15_1: |
| ; X86-BASELINE-NEXT: movl %edi, %eax |
| ; X86-BASELINE-NEXT: .LBB15_3: |
| ; X86-BASELINE-NEXT: andl (%esi), %eax |
| ; X86-BASELINE-NEXT: andl 4(%esi), %edx |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: popl %edi |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: clear_highbits64_c2_load: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %edi |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl $-1, %edi |
| ; X86-BMI1-NEXT: movl $-1, %eax |
| ; X86-BMI1-NEXT: shrl %cl, %eax |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovel %eax, %edx |
| ; X86-BMI1-NEXT: cmovel %edi, %eax |
| ; X86-BMI1-NEXT: andl (%esi), %eax |
| ; X86-BMI1-NEXT: andl 4(%esi), %edx |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: popl %edi |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits64_c2_load: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %ebx |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ebx |
| ; X86-BMI2-NEXT: movl $-1, %eax |
| ; X86-BMI2-NEXT: shrxl %ebx, %eax, %esi |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %bl |
| ; X86-BMI2-NEXT: cmovel %esi, %edx |
| ; X86-BMI2-NEXT: cmovnel %esi, %eax |
| ; X86-BMI2-NEXT: andl (%ecx), %eax |
| ; X86-BMI2-NEXT: andl 4(%ecx), %edx |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: popl %ebx |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits64_c2_load: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movq %rsi, %rcx |
| ; X64-NOBMI2-NEXT: movq (%rdi), %rax |
| ; X64-NOBMI2-NEXT: shlq %cl, %rax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits64_c2_load: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $64, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhiq %rax, (%rdi), %rax |
| ; X64-BMI2-NEXT: retq |
| %val = load i64, ptr %w |
| %mask = lshr i64 -1, %numhighbits |
| %masked = and i64 %mask, %val |
| ret i64 %masked |
| } |
| |
| define i64 @clear_highbits64_c3_load_indexzext(ptr %w, i8 %numhighbits) nounwind { |
| ; X86-BASELINE-LABEL: clear_highbits64_c3_load_indexzext: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %edi |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl $-1, %eax |
| ; X86-BASELINE-NEXT: movl $-1, %edi |
| ; X86-BASELINE-NEXT: shrl %cl, %edi |
| ; X86-BASELINE-NEXT: xorl %edx, %edx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: jne .LBB16_1 |
| ; X86-BASELINE-NEXT: # %bb.2: |
| ; X86-BASELINE-NEXT: movl %edi, %edx |
| ; X86-BASELINE-NEXT: jmp .LBB16_3 |
| ; X86-BASELINE-NEXT: .LBB16_1: |
| ; X86-BASELINE-NEXT: movl %edi, %eax |
| ; X86-BASELINE-NEXT: .LBB16_3: |
| ; X86-BASELINE-NEXT: andl (%esi), %eax |
| ; X86-BASELINE-NEXT: andl 4(%esi), %edx |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: popl %edi |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: clear_highbits64_c3_load_indexzext: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %edi |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl $-1, %edi |
| ; X86-BMI1-NEXT: movl $-1, %eax |
| ; X86-BMI1-NEXT: shrl %cl, %eax |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovel %eax, %edx |
| ; X86-BMI1-NEXT: cmovel %edi, %eax |
| ; X86-BMI1-NEXT: andl (%esi), %eax |
| ; X86-BMI1-NEXT: andl 4(%esi), %edx |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: popl %edi |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits64_c3_load_indexzext: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %ebx |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ebx |
| ; X86-BMI2-NEXT: movl $-1, %eax |
| ; X86-BMI2-NEXT: shrxl %ebx, %eax, %esi |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %bl |
| ; X86-BMI2-NEXT: cmovel %esi, %edx |
| ; X86-BMI2-NEXT: cmovnel %esi, %eax |
| ; X86-BMI2-NEXT: andl (%ecx), %eax |
| ; X86-BMI2-NEXT: andl 4(%ecx), %edx |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: popl %ebx |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits64_c3_load_indexzext: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movq (%rdi), %rax |
| ; X64-NOBMI2-NEXT: shlq %cl, %rax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits64_c3_load_indexzext: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $64, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhiq %rax, (%rdi), %rax |
| ; X64-BMI2-NEXT: retq |
| %val = load i64, ptr %w |
| %sh_prom = zext i8 %numhighbits to i64 |
| %mask = lshr i64 -1, %sh_prom |
| %masked = and i64 %mask, %val |
| ret i64 %masked |
| } |
| |
| define i64 @clear_highbits64_c4_commutative(i64 %val, i64 %numhighbits) nounwind { |
| ; X86-BASELINE-LABEL: clear_highbits64_c4_commutative: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl $-1, %eax |
| ; X86-BASELINE-NEXT: movl $-1, %esi |
| ; X86-BASELINE-NEXT: shrl %cl, %esi |
| ; X86-BASELINE-NEXT: xorl %edx, %edx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: jne .LBB17_1 |
| ; X86-BASELINE-NEXT: # %bb.2: |
| ; X86-BASELINE-NEXT: movl %esi, %edx |
| ; X86-BASELINE-NEXT: jmp .LBB17_3 |
| ; X86-BASELINE-NEXT: .LBB17_1: |
| ; X86-BASELINE-NEXT: movl %esi, %eax |
| ; X86-BASELINE-NEXT: .LBB17_3: |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: clear_highbits64_c4_commutative: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl $-1, %esi |
| ; X86-BMI1-NEXT: movl $-1, %eax |
| ; X86-BMI1-NEXT: shrl %cl, %eax |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovel %eax, %edx |
| ; X86-BMI1-NEXT: cmovel %esi, %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits64_c4_commutative: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movl $-1, %eax |
| ; X86-BMI2-NEXT: shrxl %ecx, %eax, %esi |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %cl |
| ; X86-BMI2-NEXT: cmovel %esi, %edx |
| ; X86-BMI2-NEXT: cmovnel %esi, %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits64_c4_commutative: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movq %rsi, %rcx |
| ; X64-NOBMI2-NEXT: movq %rdi, %rax |
| ; X64-NOBMI2-NEXT: shlq %cl, %rax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits64_c4_commutative: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $64, %eax |
| ; X64-BMI2-NEXT: subl %esi, %eax |
| ; X64-BMI2-NEXT: bzhiq %rax, %rdi, %rax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i64 -1, %numhighbits |
| %masked = and i64 %val, %mask ; swapped order |
| ret i64 %masked |
| } |
| |
| ; ---------------------------------------------------------------------------- ; |
| ; Multi-use tests |
| ; ---------------------------------------------------------------------------- ; |
| |
| define i32 @oneuse32_c(i32 %val, i32 %numhighbits, ptr %escape) nounwind { |
| ; X86-NOBMI2-LABEL: oneuse32_c: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl $-1, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: movl %eax, (%edx) |
| ; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: oneuse32_c: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl $-1, %edx |
| ; X86-BMI2-NEXT: shrxl %eax, %edx, %eax |
| ; X86-BMI2-NEXT: movl %eax, (%ecx) |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: oneuse32_c: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl $-1, %eax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: movl %eax, (%rdx) |
| ; X64-NOBMI2-NEXT: andl %edi, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: oneuse32_c: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movl $-1, %eax |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: movl %eax, (%rdx) |
| ; X64-BMI2-NEXT: andl %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i32 -1, %numhighbits |
| store i32 %mask, ptr %escape |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| |
| define i64 @oneuse64_c(i64 %val, i64 %numhighbits, ptr %escape) nounwind { |
| ; X86-BASELINE-LABEL: oneuse64_c: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl $-1, %eax |
| ; X86-BASELINE-NEXT: movl $-1, %edx |
| ; X86-BASELINE-NEXT: shrl %cl, %edx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: je .LBB19_2 |
| ; X86-BASELINE-NEXT: # %bb.1: |
| ; X86-BASELINE-NEXT: movl %edx, %eax |
| ; X86-BASELINE-NEXT: xorl %edx, %edx |
| ; X86-BASELINE-NEXT: .LBB19_2: |
| ; X86-BASELINE-NEXT: movl %edx, 4(%esi) |
| ; X86-BASELINE-NEXT: movl %eax, (%esi) |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BASELINE-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: oneuse64_c: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %edi |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl $-1, %eax |
| ; X86-BMI1-NEXT: movl $-1, %edi |
| ; X86-BMI1-NEXT: shrl %cl, %edi |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovnel %edi, %eax |
| ; X86-BMI1-NEXT: cmovel %edi, %edx |
| ; X86-BMI1-NEXT: movl %edx, 4(%esi) |
| ; X86-BMI1-NEXT: movl %eax, (%esi) |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: popl %edi |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: oneuse64_c: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %ebx |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ebx |
| ; X86-BMI2-NEXT: movl $-1, %eax |
| ; X86-BMI2-NEXT: shrxl %ebx, %eax, %esi |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %bl |
| ; X86-BMI2-NEXT: cmovnel %esi, %eax |
| ; X86-BMI2-NEXT: cmovel %esi, %edx |
| ; X86-BMI2-NEXT: movl %edx, 4(%ecx) |
| ; X86-BMI2-NEXT: movl %eax, (%ecx) |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: popl %ebx |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: oneuse64_c: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movq %rsi, %rcx |
| ; X64-NOBMI2-NEXT: movq $-1, %rax |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: movq %rax, (%rdx) |
| ; X64-NOBMI2-NEXT: andq %rdi, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: oneuse64_c: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movq $-1, %rax |
| ; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax |
| ; X64-BMI2-NEXT: movq %rax, (%rdx) |
| ; X64-BMI2-NEXT: andq %rdi, %rax |
| ; X64-BMI2-NEXT: retq |
| %mask = lshr i64 -1, %numhighbits |
| store i64 %mask, ptr %escape |
| %masked = and i64 %mask, %val |
| ret i64 %masked |
| } |
| |
| define i32 @oneuse32_d(i32 %val, i32 %numhighbits, ptr %escape) nounwind { |
| ; X86-NOBMI2-LABEL: oneuse32_d: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; X86-NOBMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: movl %eax, (%edx) |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: oneuse32_d: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: shlxl %ecx, {{[0-9]+}}(%esp), %edx |
| ; X86-BMI2-NEXT: movl %edx, (%eax) |
| ; X86-BMI2-NEXT: shrxl %ecx, %edx, %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: oneuse32_d: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %esi, %ecx |
| ; X64-NOBMI2-NEXT: movl %edi, %eax |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: movl %eax, (%rdx) |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: oneuse32_d: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: shlxl %esi, %edi, %eax |
| ; X64-BMI2-NEXT: movl %eax, (%rdx) |
| ; X64-BMI2-NEXT: shrxl %esi, %eax, %eax |
| ; X64-BMI2-NEXT: retq |
| %sh1 = shl i32 %val, %numhighbits |
| store i32 %sh1, ptr %escape |
| %masked = lshr i32 %sh1, %numhighbits |
| ret i32 %masked |
| } |
| |
| define i64 @oneusei64_d(i64 %val, i64 %numhighbits, ptr %escape) nounwind { |
| ; X86-BASELINE-LABEL: oneusei64_d: |
| ; X86-BASELINE: # %bb.0: |
| ; X86-BASELINE-NEXT: pushl %ebx |
| ; X86-BASELINE-NEXT: pushl %edi |
| ; X86-BASELINE-NEXT: pushl %esi |
| ; X86-BASELINE-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; X86-BASELINE-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-BASELINE-NEXT: movl %edx, %edi |
| ; X86-BASELINE-NEXT: shll %cl, %edi |
| ; X86-BASELINE-NEXT: shldl %cl, %edx, %eax |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: movl %edi, %esi |
| ; X86-BASELINE-NEXT: jne .LBB21_2 |
| ; X86-BASELINE-NEXT: # %bb.1: |
| ; X86-BASELINE-NEXT: movl %eax, %esi |
| ; X86-BASELINE-NEXT: .LBB21_2: |
| ; X86-BASELINE-NEXT: movl %esi, %eax |
| ; X86-BASELINE-NEXT: shrl %cl, %eax |
| ; X86-BASELINE-NEXT: xorl %ebx, %ebx |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: movl $0, %edx |
| ; X86-BASELINE-NEXT: jne .LBB21_4 |
| ; X86-BASELINE-NEXT: # %bb.3: |
| ; X86-BASELINE-NEXT: movl %edi, %ebx |
| ; X86-BASELINE-NEXT: movl %eax, %edx |
| ; X86-BASELINE-NEXT: .LBB21_4: |
| ; X86-BASELINE-NEXT: movl %ebx, %edi |
| ; X86-BASELINE-NEXT: shrdl %cl, %esi, %edi |
| ; X86-BASELINE-NEXT: testb $32, %cl |
| ; X86-BASELINE-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BASELINE-NEXT: movl %ebx, (%ecx) |
| ; X86-BASELINE-NEXT: movl %esi, 4(%ecx) |
| ; X86-BASELINE-NEXT: jne .LBB21_6 |
| ; X86-BASELINE-NEXT: # %bb.5: |
| ; X86-BASELINE-NEXT: movl %edi, %eax |
| ; X86-BASELINE-NEXT: .LBB21_6: |
| ; X86-BASELINE-NEXT: popl %esi |
| ; X86-BASELINE-NEXT: popl %edi |
| ; X86-BASELINE-NEXT: popl %ebx |
| ; X86-BASELINE-NEXT: retl |
| ; |
| ; X86-BMI1-LABEL: oneusei64_d: |
| ; X86-BMI1: # %bb.0: |
| ; X86-BMI1-NEXT: pushl %ebx |
| ; X86-BMI1-NEXT: pushl %edi |
| ; X86-BMI1-NEXT: pushl %esi |
| ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BMI1-NEXT: movl %edx, %eax |
| ; X86-BMI1-NEXT: shll %cl, %eax |
| ; X86-BMI1-NEXT: shldl %cl, %edx, %esi |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovnel %eax, %esi |
| ; X86-BMI1-NEXT: movl %esi, %edi |
| ; X86-BMI1-NEXT: shrl %cl, %edi |
| ; X86-BMI1-NEXT: xorl %edx, %edx |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: cmovnel %edx, %eax |
| ; X86-BMI1-NEXT: cmovel %edi, %edx |
| ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ebx |
| ; X86-BMI1-NEXT: movl %eax, (%ebx) |
| ; X86-BMI1-NEXT: shrdl %cl, %esi, %eax |
| ; X86-BMI1-NEXT: testb $32, %cl |
| ; X86-BMI1-NEXT: movl %esi, 4(%ebx) |
| ; X86-BMI1-NEXT: cmovnel %edi, %eax |
| ; X86-BMI1-NEXT: popl %esi |
| ; X86-BMI1-NEXT: popl %edi |
| ; X86-BMI1-NEXT: popl %ebx |
| ; X86-BMI1-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: oneusei64_d: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: pushl %ebx |
| ; X86-BMI2-NEXT: pushl %edi |
| ; X86-BMI2-NEXT: pushl %esi |
| ; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi |
| ; X86-BMI2-NEXT: shldl %cl, %eax, %esi |
| ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax |
| ; X86-BMI2-NEXT: xorl %edx, %edx |
| ; X86-BMI2-NEXT: testb $32, %cl |
| ; X86-BMI2-NEXT: cmovnel %eax, %esi |
| ; X86-BMI2-NEXT: cmovnel %edx, %eax |
| ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edi |
| ; X86-BMI2-NEXT: cmovel %edi, %edx |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ebx |
| ; X86-BMI2-NEXT: movl %eax, (%ebx) |
| ; X86-BMI2-NEXT: shrdl %cl, %esi, %eax |
| ; X86-BMI2-NEXT: testb $32, %cl |
| ; X86-BMI2-NEXT: movl %esi, 4(%ebx) |
| ; X86-BMI2-NEXT: cmovnel %edi, %eax |
| ; X86-BMI2-NEXT: popl %esi |
| ; X86-BMI2-NEXT: popl %edi |
| ; X86-BMI2-NEXT: popl %ebx |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: oneusei64_d: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movq %rsi, %rcx |
| ; X64-NOBMI2-NEXT: movq %rdi, %rax |
| ; X64-NOBMI2-NEXT: shlq %cl, %rax |
| ; X64-NOBMI2-NEXT: movq %rax, (%rdx) |
| ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx |
| ; X64-NOBMI2-NEXT: shrq %cl, %rax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: oneusei64_d: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax |
| ; X64-BMI2-NEXT: movq %rax, (%rdx) |
| ; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax |
| ; X64-BMI2-NEXT: retq |
| %sh1 = shl i64 %val, %numhighbits |
| store i64 %sh1, ptr %escape |
| %masked = lshr i64 %sh1, %numhighbits |
| ret i64 %masked |
| } |
| |
| ; ---------------------------------------------------------------------------- ; |
| ; Misc. |
| ; |
| ; Variation of pattern |
| ; c) x & (-1 >> (C - y)) |
| ; but with C != bitwidth(x) |
| ; ---------------------------------------------------------------------------- ; |
| |
| define i32 @clear_highbits32_16(i32 %val, i32 %numlowbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_16: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: movb $16, %cl |
| ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_16: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movb $16, %al |
| ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al |
| ; X86-BMI2-NEXT: movl $32, %ecx |
| ; X86-BMI2-NEXT: subl %eax, %ecx |
| ; X86-BMI2-NEXT: bzhil %ecx, {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_16: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %edi, %eax |
| ; X64-NOBMI2-NEXT: movb $16, %cl |
| ; X64-NOBMI2-NEXT: subb %sil, %cl |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_16: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movb $16, %al |
| ; X64-BMI2-NEXT: subb %sil, %al |
| ; X64-BMI2-NEXT: movl $32, %ecx |
| ; X64-BMI2-NEXT: subl %eax, %ecx |
| ; X64-BMI2-NEXT: bzhil %ecx, %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %numhighbits = sub i32 16, %numlowbits |
| %mask = lshr i32 -1, %numhighbits |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| define i32 @clear_highbits32_48(i32 %val, i32 %numlowbits) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_48: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: movb $48, %cl |
| ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl |
| ; X86-NOBMI2-NEXT: shll %cl, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_48: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movb $48, %al |
| ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al |
| ; X86-BMI2-NEXT: movl $32, %ecx |
| ; X86-BMI2-NEXT: subl %eax, %ecx |
| ; X86-BMI2-NEXT: bzhil %ecx, {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_48: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movl %edi, %eax |
| ; X64-NOBMI2-NEXT: movb $48, %cl |
| ; X64-NOBMI2-NEXT: subb %sil, %cl |
| ; X64-NOBMI2-NEXT: shll %cl, %eax |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_48: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movb $48, %al |
| ; X64-BMI2-NEXT: subb %sil, %al |
| ; X64-BMI2-NEXT: movl $32, %ecx |
| ; X64-BMI2-NEXT: subl %eax, %ecx |
| ; X64-BMI2-NEXT: bzhil %ecx, %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %numhighbits = sub i32 48, %numlowbits |
| %mask = lshr i32 -1, %numhighbits |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| |
| define i32 @clear_highbits32_16_extrause(i32 %val, i32 %numlowbits, ptr %escape) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_16_extrause: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; X86-NOBMI2-NEXT: movb $16, %cl |
| ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl |
| ; X86-NOBMI2-NEXT: movl $-1, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: movl %eax, (%edx) |
| ; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_16_extrause: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movb $16, %al |
| ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al |
| ; X86-BMI2-NEXT: movl $-1, %edx |
| ; X86-BMI2-NEXT: shrxl %eax, %edx, %eax |
| ; X86-BMI2-NEXT: movl %eax, (%ecx) |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_16_extrause: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movb $16, %cl |
| ; X64-NOBMI2-NEXT: subb %sil, %cl |
| ; X64-NOBMI2-NEXT: movl $-1, %eax |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: movl %eax, (%rdx) |
| ; X64-NOBMI2-NEXT: andl %edi, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_16_extrause: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movb $16, %al |
| ; X64-BMI2-NEXT: subb %sil, %al |
| ; X64-BMI2-NEXT: movl $-1, %ecx |
| ; X64-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X64-BMI2-NEXT: movl %eax, (%rdx) |
| ; X64-BMI2-NEXT: andl %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %numhighbits = sub i32 16, %numlowbits |
| %mask = lshr i32 -1, %numhighbits |
| store i32 %mask, ptr %escape |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |
| define i32 @clear_highbits32_48_extrause(i32 %val, i32 %numlowbits, ptr %escape) nounwind { |
| ; X86-NOBMI2-LABEL: clear_highbits32_48_extrause: |
| ; X86-NOBMI2: # %bb.0: |
| ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; X86-NOBMI2-NEXT: movb $48, %cl |
| ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl |
| ; X86-NOBMI2-NEXT: movl $-1, %eax |
| ; X86-NOBMI2-NEXT: shrl %cl, %eax |
| ; X86-NOBMI2-NEXT: movl %eax, (%edx) |
| ; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-NOBMI2-NEXT: retl |
| ; |
| ; X86-BMI2-LABEL: clear_highbits32_48_extrause: |
| ; X86-BMI2: # %bb.0: |
| ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx |
| ; X86-BMI2-NEXT: movb $48, %al |
| ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al |
| ; X86-BMI2-NEXT: movl $-1, %edx |
| ; X86-BMI2-NEXT: shrxl %eax, %edx, %eax |
| ; X86-BMI2-NEXT: movl %eax, (%ecx) |
| ; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax |
| ; X86-BMI2-NEXT: retl |
| ; |
| ; X64-NOBMI2-LABEL: clear_highbits32_48_extrause: |
| ; X64-NOBMI2: # %bb.0: |
| ; X64-NOBMI2-NEXT: movb $48, %cl |
| ; X64-NOBMI2-NEXT: subb %sil, %cl |
| ; X64-NOBMI2-NEXT: movl $-1, %eax |
| ; X64-NOBMI2-NEXT: shrl %cl, %eax |
| ; X64-NOBMI2-NEXT: movl %eax, (%rdx) |
| ; X64-NOBMI2-NEXT: andl %edi, %eax |
| ; X64-NOBMI2-NEXT: retq |
| ; |
| ; X64-BMI2-LABEL: clear_highbits32_48_extrause: |
| ; X64-BMI2: # %bb.0: |
| ; X64-BMI2-NEXT: movb $48, %al |
| ; X64-BMI2-NEXT: subb %sil, %al |
| ; X64-BMI2-NEXT: movl $-1, %ecx |
| ; X64-BMI2-NEXT: shrxl %eax, %ecx, %eax |
| ; X64-BMI2-NEXT: movl %eax, (%rdx) |
| ; X64-BMI2-NEXT: andl %edi, %eax |
| ; X64-BMI2-NEXT: retq |
| %numhighbits = sub i32 48, %numlowbits |
| %mask = lshr i32 -1, %numhighbits |
| store i32 %mask, ptr %escape |
| %masked = and i32 %mask, %val |
| ret i32 %masked |
| } |