; 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 }