| ; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu | FileCheck %s --check-prefix=X64 |
| ; RUN: llc < %s -mtriple=x86_64-pc-linux-gnux32 | FileCheck %s --check-prefix=X64 |
| ; RUN: llc < %s -mtriple=i686-pc-linux | FileCheck %s --check-prefix=X86 |
| |
| define i32 @mul4_32(i32 %A) { |
| ; X64-LABEL: mul4_32: |
| ; X64: leal |
| ; X86-LABEL: mul4_32: |
| ; X86: shll |
| %mul = mul i32 %A, 4 |
| ret i32 %mul |
| } |
| |
| define i64 @mul4_64(i64 %A) { |
| ; X64-LABEL: mul4_64: |
| ; X64: leaq |
| ; X86-LABEL: mul4_64: |
| ; X86: shldl |
| ; X86: shll |
| %mul = mul i64 %A, 4 |
| ret i64 %mul |
| } |
| |
| define i32 @mul4096_32(i32 %A) { |
| ; X64-LABEL: mul4096_32: |
| ; X64: shll |
| ; X86-LABEL: mul4096_32: |
| ; X86: shll |
| %mul = mul i32 %A, 4096 |
| ret i32 %mul |
| } |
| |
| define i64 @mul4096_64(i64 %A) { |
| ; X64-LABEL: mul4096_64: |
| ; X64: shlq |
| ; X86-LABEL: mul4096_64: |
| ; X86: shldl |
| ; X86: shll |
| %mul = mul i64 %A, 4096 |
| ret i64 %mul |
| } |
| |
| define i32 @mulmin4096_32(i32 %A) { |
| ; X64-LABEL: mulmin4096_32: |
| ; X64: shll |
| ; X64-NEXT: negl |
| ; X86-LABEL: mulmin4096_32: |
| ; X86: shll |
| ; X86-NEXT: negl |
| %mul = mul i32 %A, -4096 |
| ret i32 %mul |
| } |
| |
| define i64 @mulmin4096_64(i64 %A) { |
| ; X64-LABEL: mulmin4096_64: |
| ; X64: shlq |
| ; X64-NEXT: negq |
| ; X86-LABEL: mulmin4096_64: |
| ; X86: shldl |
| ; X86-NEXT: shll |
| ; X86-NEXT: xorl |
| ; X86-NEXT: negl |
| ; X86-NEXT: sbbl |
| %mul = mul i64 %A, -4096 |
| ret i64 %mul |
| } |
| |
| define i32 @mul3_32(i32 %A) { |
| ; X64-LABEL: mul3_32: |
| ; X64: leal |
| ; X86-LABEL: mul3_32: |
| ; But why?! |
| ; X86: imull |
| %mul = mul i32 %A, 3 |
| ret i32 %mul |
| } |
| |
| define i64 @mul3_64(i64 %A) { |
| ; X64-LABEL: mul3_64: |
| ; X64: leaq |
| ; X86-LABEL: mul3_64: |
| ; X86: mull |
| ; X86-NEXT: imull |
| %mul = mul i64 %A, 3 |
| ret i64 %mul |
| } |
| |
| define i32 @mul40_32(i32 %A) { |
| ; X64-LABEL: mul40_32: |
| ; X64: shll |
| ; X64-NEXT: leal |
| ; X86-LABEL: mul40_32: |
| ; X86: shll |
| ; X86-NEXT: leal |
| %mul = mul i32 %A, 40 |
| ret i32 %mul |
| } |
| |
| define i64 @mul40_64(i64 %A) { |
| ; X64-LABEL: mul40_64: |
| ; X64: shlq |
| ; X64-NEXT: leaq |
| ; X86-LABEL: mul40_64: |
| ; X86: leal |
| ; X86-NEXT: movl |
| ; X86-NEXT: mull |
| ; X86-NEXT: leal |
| %mul = mul i64 %A, 40 |
| ret i64 %mul |
| } |
| |
| define i32 @mul4_32_minsize(i32 %A) minsize { |
| ; X64-LABEL: mul4_32_minsize: |
| ; X64: leal |
| ; X86-LABEL: mul4_32_minsize: |
| ; X86: shll |
| %mul = mul i32 %A, 4 |
| ret i32 %mul |
| } |
| |
| define i32 @mul40_32_minsize(i32 %A) minsize { |
| ; X64-LABEL: mul40_32_minsize: |
| ; X64: imull |
| ; X86-LABEL: mul40_32_minsize: |
| ; X86: imull |
| %mul = mul i32 %A, 40 |
| ret i32 %mul |
| } |
| |
| define i32 @mul33_32(i32 %A) { |
| ; X64-LABEL: mul33_32: |
| ; X64: shll |
| ; X64-NEXT: leal |
| ; X86-LABEL: mul33_32: |
| ; X86: shll |
| ; X86-NEXT: addl |
| %mul = mul i32 %A, 33 |
| ret i32 %mul |
| } |
| |
| define i32 @mul31_32(i32 %A) { |
| ; X64-LABEL: mul31_32: |
| ; X64: shll |
| ; X64-NEXT: subl |
| ; X86-LABEL: mul31_32: |
| ; X86: shll |
| ; X86-NEXT: subl |
| %mul = mul i32 %A, 31 |
| ret i32 %mul |
| } |
| |
| define i32 @mul0_32(i32 %A) { |
| ; X64-LABEL: mul0_32: |
| ; X64: xorl %eax, %eax |
| %mul = mul i32 %A, 0 |
| ret i32 %mul |
| } |
| |
| define i32 @mul4294967295_32(i32 %A) { |
| ; X64-LABEL: mul4294967295_32: |
| ; X64: negl %edi |
| ; X64-NEXT: movl %edi, %eax |
| %mul = mul i32 %A, 4294967295 |
| ret i32 %mul |
| } |
| |
| define i64 @mul18446744073709551615_64(i64 %A) { |
| ; X64-LABEL: mul18446744073709551615_64: |
| ; X64: negq %rdi |
| ; X64-NEXT: movq %rdi, %rax |
| %mul = mul i64 %A, 18446744073709551615 |
| ret i64 %mul |
| } |