| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s --check-prefix=I386 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s --check-prefix=X86-64 |
| |
| @result = dso_local global i32 0, align 4 |
| |
| define dso_local i32 @skip(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="skip" { |
| ; I386-LABEL: skip: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: skip: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @used_gpr_arg(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="used-gpr-arg" { |
| ; I386-LABEL: used_gpr_arg: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: used_gpr_arg: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @used_gpr(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="used-gpr" { |
| ; I386-LABEL: used_gpr: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: used_gpr: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @used_arg(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="used-arg" { |
| ; I386-LABEL: used_arg: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: used_arg: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @used(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="used" { |
| ; I386-LABEL: used: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: used: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @all_gpr_arg(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="all-gpr-arg" { |
| ; I386-LABEL: all_gpr_arg: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: xorl %ecx, %ecx |
| ; I386-NEXT: xorl %edx, %edx |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: all_gpr_arg: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %ecx, %ecx |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: xorl %edx, %edx |
| ; X86-64-NEXT: xorl %esi, %esi |
| ; X86-64-NEXT: xorl %r8d, %r8d |
| ; X86-64-NEXT: xorl %r9d, %r9d |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @all_gpr(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="all-gpr" { |
| ; I386-LABEL: all_gpr: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: xorl %ebp, %ebp |
| ; I386-NEXT: xorl %ebx, %ebx |
| ; I386-NEXT: xorl %ecx, %ecx |
| ; I386-NEXT: xorl %edi, %edi |
| ; I386-NEXT: xorl %edx, %edx |
| ; I386-NEXT: xorl %esi, %esi |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: all_gpr: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %ebp, %ebp |
| ; X86-64-NEXT: xorl %ebx, %ebx |
| ; X86-64-NEXT: xorl %ecx, %ecx |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: xorl %edx, %edx |
| ; X86-64-NEXT: xorl %esi, %esi |
| ; X86-64-NEXT: xorl %r8d, %r8d |
| ; X86-64-NEXT: xorl %r9d, %r9d |
| ; X86-64-NEXT: xorl %r10d, %r10d |
| ; X86-64-NEXT: xorl %r11d, %r11d |
| ; X86-64-NEXT: xorl %r12d, %r12d |
| ; X86-64-NEXT: xorl %r13d, %r13d |
| ; X86-64-NEXT: xorl %r14d, %r14d |
| ; X86-64-NEXT: xorl %r15d, %r15d |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @all_arg(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="all-arg" { |
| ; I386-LABEL: all_arg: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: xorl %ecx, %ecx |
| ; I386-NEXT: xorl %edx, %edx |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: all_arg: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: xorl %ecx, %ecx |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: xorl %edx, %edx |
| ; X86-64-NEXT: xorl %esi, %esi |
| ; X86-64-NEXT: xorl %r8d, %r8d |
| ; X86-64-NEXT: xorl %r9d, %r9d |
| ; X86-64-NEXT: xorps %xmm0, %xmm0 |
| ; X86-64-NEXT: xorps %xmm1, %xmm1 |
| ; X86-64-NEXT: xorps %xmm2, %xmm2 |
| ; X86-64-NEXT: xorps %xmm3, %xmm3 |
| ; X86-64-NEXT: xorps %xmm4, %xmm4 |
| ; X86-64-NEXT: xorps %xmm5, %xmm5 |
| ; X86-64-NEXT: xorps %xmm6, %xmm6 |
| ; X86-64-NEXT: xorps %xmm7, %xmm7 |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| define dso_local i32 @all(i32 returned %x) local_unnamed_addr #0 "zero-call-used-regs"="all" { |
| ; I386-LABEL: all: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fldz |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: fstp %st(0) |
| ; I386-NEXT: xorl %ebp, %ebp |
| ; I386-NEXT: xorl %ebx, %ebx |
| ; I386-NEXT: xorl %ecx, %ecx |
| ; I386-NEXT: xorl %edi, %edi |
| ; I386-NEXT: xorl %edx, %edx |
| ; I386-NEXT: xorl %esi, %esi |
| ; I386-NEXT: xorps %xmm0, %xmm0 |
| ; I386-NEXT: xorps %xmm1, %xmm1 |
| ; I386-NEXT: xorps %xmm2, %xmm2 |
| ; I386-NEXT: xorps %xmm3, %xmm3 |
| ; I386-NEXT: xorps %xmm4, %xmm4 |
| ; I386-NEXT: xorps %xmm5, %xmm5 |
| ; I386-NEXT: xorps %xmm6, %xmm6 |
| ; I386-NEXT: xorps %xmm7, %xmm7 |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: all: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: movl %edi, %eax |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fldz |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: fstp %st(0) |
| ; X86-64-NEXT: xorl %ebp, %ebp |
| ; X86-64-NEXT: xorl %ebx, %ebx |
| ; X86-64-NEXT: xorl %ecx, %ecx |
| ; X86-64-NEXT: xorl %edi, %edi |
| ; X86-64-NEXT: xorl %edx, %edx |
| ; X86-64-NEXT: xorl %esi, %esi |
| ; X86-64-NEXT: xorl %r8d, %r8d |
| ; X86-64-NEXT: xorl %r9d, %r9d |
| ; X86-64-NEXT: xorl %r10d, %r10d |
| ; X86-64-NEXT: xorl %r11d, %r11d |
| ; X86-64-NEXT: xorl %r12d, %r12d |
| ; X86-64-NEXT: xorl %r13d, %r13d |
| ; X86-64-NEXT: xorl %r14d, %r14d |
| ; X86-64-NEXT: xorl %r15d, %r15d |
| ; X86-64-NEXT: xorps %xmm0, %xmm0 |
| ; X86-64-NEXT: xorps %xmm1, %xmm1 |
| ; X86-64-NEXT: xorps %xmm2, %xmm2 |
| ; X86-64-NEXT: xorps %xmm3, %xmm3 |
| ; X86-64-NEXT: xorps %xmm4, %xmm4 |
| ; X86-64-NEXT: xorps %xmm5, %xmm5 |
| ; X86-64-NEXT: xorps %xmm6, %xmm6 |
| ; X86-64-NEXT: xorps %xmm7, %xmm7 |
| ; X86-64-NEXT: xorps %xmm8, %xmm8 |
| ; X86-64-NEXT: xorps %xmm9, %xmm9 |
| ; X86-64-NEXT: xorps %xmm10, %xmm10 |
| ; X86-64-NEXT: xorps %xmm11, %xmm11 |
| ; X86-64-NEXT: xorps %xmm12, %xmm12 |
| ; X86-64-NEXT: xorps %xmm13, %xmm13 |
| ; X86-64-NEXT: xorps %xmm14, %xmm14 |
| ; X86-64-NEXT: xorps %xmm15, %xmm15 |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 %x |
| } |
| |
| ; Don't emit zeroing registers in "main" function. |
| define dso_local i32 @main() local_unnamed_addr #1 { |
| ; I386-LABEL: main: |
| ; I386: # %bb.0: # %entry |
| ; I386-NEXT: xorl %eax, %eax |
| ; I386-NEXT: retl |
| ; |
| ; X86-64-LABEL: main: |
| ; X86-64: # %bb.0: # %entry |
| ; X86-64-NEXT: xorl %eax, %eax |
| ; X86-64-NEXT: retq |
| |
| entry: |
| ret i32 0 |
| } |
| |
| attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone uwtable willreturn "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #1 = { nofree norecurse nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |