forked from OSchip/llvm-project
398 lines
8.5 KiB
LLVM
398 lines
8.5 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu | FileCheck %s --check-prefix=X64
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; RUN: llc < %s -mtriple=x86_64-pc-linux-gnux32 | FileCheck %s --check-prefix=X64
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; RUN: llc < %s -mtriple=i686-pc-linux | FileCheck %s --check-prefix=X86
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define i32 @mul4_32(i32 %A) {
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; X64-LABEL: mul4_32:
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; X64: leal
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; X86-LABEL: mul4_32:
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; X86: shll
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%mul = mul i32 %A, 4
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ret i32 %mul
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}
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define i64 @mul4_64(i64 %A) {
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; X64-LABEL: mul4_64:
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; X64: leaq
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; X86-LABEL: mul4_64:
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; X86: shldl
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; X86: shll
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%mul = mul i64 %A, 4
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ret i64 %mul
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}
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define i32 @mul4096_32(i32 %A) {
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; X64-LABEL: mul4096_32:
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; X64: shll
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; X86-LABEL: mul4096_32:
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; X86: shll
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%mul = mul i32 %A, 4096
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ret i32 %mul
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}
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define i64 @mul4096_64(i64 %A) {
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; X64-LABEL: mul4096_64:
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; X64: shlq
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; X86-LABEL: mul4096_64:
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; X86: shldl
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; X86: shll
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%mul = mul i64 %A, 4096
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ret i64 %mul
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}
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define i32 @mulmin4096_32(i32 %A) {
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; X64-LABEL: mulmin4096_32:
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; X64: shll
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; X64-NEXT: negl
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; X86-LABEL: mulmin4096_32:
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; X86: shll
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; X86-NEXT: negl
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%mul = mul i32 %A, -4096
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ret i32 %mul
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}
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define i64 @mulmin4096_64(i64 %A) {
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; X64-LABEL: mulmin4096_64:
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; X64: shlq
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; X64-NEXT: negq
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; X86-LABEL: mulmin4096_64:
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; X86: shldl
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; X86-NEXT: shll
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; X86-NEXT: xorl
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; X86-NEXT: negl
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; X86-NEXT: sbbl
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%mul = mul i64 %A, -4096
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ret i64 %mul
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}
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define i32 @mul3_32(i32 %A) {
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; X64-LABEL: mul3_32:
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; X64: leal
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; X86-LABEL: mul3_32:
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; But why?!
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; X86: imull
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%mul = mul i32 %A, 3
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ret i32 %mul
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}
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define i64 @mul3_64(i64 %A) {
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; X64-LABEL: mul3_64:
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; X64: leaq
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; X86-LABEL: mul3_64:
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; X86: mull
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; X86-NEXT: imull
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%mul = mul i64 %A, 3
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ret i64 %mul
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}
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define i32 @mul40_32(i32 %A) {
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; X64-LABEL: mul40_32:
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; X64: shll
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; X64-NEXT: leal
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; X86-LABEL: mul40_32:
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; X86: shll
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; X86-NEXT: leal
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%mul = mul i32 %A, 40
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ret i32 %mul
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}
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define i64 @mul40_64(i64 %A) {
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; X64-LABEL: mul40_64:
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; X64: shlq
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; X64-NEXT: leaq
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; X86-LABEL: mul40_64:
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; X86: leal
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; X86-NEXT: movl
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; X86-NEXT: mull
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; X86-NEXT: leal
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%mul = mul i64 %A, 40
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ret i64 %mul
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}
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define i32 @mul4_32_minsize(i32 %A) minsize {
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; X64-LABEL: mul4_32_minsize:
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; X64: leal
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; X86-LABEL: mul4_32_minsize:
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; X86: shll
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%mul = mul i32 %A, 4
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ret i32 %mul
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}
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define i32 @mul40_32_minsize(i32 %A) minsize {
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; X64-LABEL: mul40_32_minsize:
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; X64: imull
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; X86-LABEL: mul40_32_minsize:
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; X86: imull
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%mul = mul i32 %A, 40
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ret i32 %mul
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}
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define i32 @mul33_32(i32 %A) {
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; X64-LABEL: mul33_32:
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; X64: shll
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; X64-NEXT: leal
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; X86-LABEL: mul33_32:
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; X86: shll
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; X86-NEXT: addl
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%mul = mul i32 %A, 33
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ret i32 %mul
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}
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define i32 @mul31_32(i32 %A) {
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; X64-LABEL: mul31_32:
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; X64: shll
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; X64-NEXT: subl
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; X86-LABEL: mul31_32:
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; X86: shll
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; X86-NEXT: subl
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%mul = mul i32 %A, 31
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ret i32 %mul
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}
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define i32 @mul0_32(i32 %A) {
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; X64-LABEL: mul0_32:
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; X64: xorl %eax, %eax
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%mul = mul i32 %A, 0
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ret i32 %mul
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}
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define i32 @mul4294967295_32(i32 %A) {
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; X64-LABEL: mul4294967295_32:
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; X64: negl %edi
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; X64-NEXT: movl %edi, %eax
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%mul = mul i32 %A, 4294967295
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ret i32 %mul
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}
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define i64 @mul18446744073709551615_64(i64 %A) {
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; X64-LABEL: mul18446744073709551615_64:
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; X64: negq %rdi
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; X64-NEXT: movq %rdi, %rax
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%mul = mul i64 %A, 18446744073709551615
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ret i64 %mul
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}
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define i32 @test(i32 %a) {
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; X64-LABEL: test:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: shll $5, %eax
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; X64-NEXT: subl %edi, %eax
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; X64-NEXT: retq
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;
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; X86-LABEL: test:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: shll $5, %eax
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; X86-NEXT: subl %ecx, %eax
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i32 %a, 31
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ret i32 %tmp3
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}
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define i32 @test1(i32 %a) {
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; X64-LABEL: test1:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: shll $5, %eax
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; X64-NEXT: subl %edi, %eax
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; X64-NEXT: negl %eax
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; X64-NEXT: retq
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;
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; X86-LABEL: test1:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: shll $5, %eax
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; X86-NEXT: subl %ecx, %eax
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; X86-NEXT: negl %eax
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i32 %a, -31
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ret i32 %tmp3
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}
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define i32 @test2(i32 %a) {
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; X64-LABEL: test2:
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; X64: # %bb.0: # %entry
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; X64-NEXT: # kill: def $edi killed $edi def $rdi
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: shll $5, %eax
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; X64-NEXT: leal (%rax,%rdi), %eax
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; X64-NEXT: retq
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;
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; X86-LABEL: test2:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: shll $5, %eax
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; X86-NEXT: addl %ecx, %eax
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i32 %a, 33
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ret i32 %tmp3
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}
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define i32 @test3(i32 %a) {
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; X64-LABEL: test3:
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; X64: # %bb.0: # %entry
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; X64-NEXT: # kill: def $edi killed $edi def $rdi
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: shll $5, %eax
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; X64-NEXT: leal (%rax,%rdi), %eax
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; X64-NEXT: negl %eax
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; X64-NEXT: retq
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;
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; X86-LABEL: test3:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: shll $5, %eax
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; X86-NEXT: addl %ecx, %eax
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; X86-NEXT: negl %eax
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i32 %a, -33
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ret i32 %tmp3
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}
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define i64 @test4(i64 %a) {
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; X64-LABEL: test4:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: shlq $5, %rax
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; X64-NEXT: subq %rdi, %rax
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; X64-NEXT: retq
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;
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; X86-LABEL: test4:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %eax, %ecx
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; X86-NEXT: shll $5, %ecx
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; X86-NEXT: subl %eax, %ecx
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; X86-NEXT: movl $31, %eax
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; X86-NEXT: mull {{[0-9]+}}(%esp)
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; X86-NEXT: addl %ecx, %edx
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i64 %a, 31
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ret i64 %tmp3
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}
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define i64 @test5(i64 %a) {
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; X64-LABEL: test5:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: shlq $5, %rax
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; X64-NEXT: subq %rdi, %rax
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; X64-NEXT: negq %rax
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; X64-NEXT: retq
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;
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; X86-LABEL: test5:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: .cfi_offset %esi, -8
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %eax, %esi
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; X86-NEXT: shll $5, %esi
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; X86-NEXT: subl %eax, %esi
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; X86-NEXT: movl $-31, %edx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: mull %edx
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; X86-NEXT: subl %ecx, %edx
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; X86-NEXT: subl %esi, %edx
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; X86-NEXT: popl %esi
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i64 %a, -31
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ret i64 %tmp3
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}
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define i64 @test6(i64 %a) {
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; X64-LABEL: test6:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: shlq $5, %rax
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; X64-NEXT: leaq (%rax,%rdi), %rax
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; X64-NEXT: retq
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;
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; X86-LABEL: test6:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %eax, %ecx
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; X86-NEXT: shll $5, %ecx
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; X86-NEXT: addl %eax, %ecx
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; X86-NEXT: movl $33, %eax
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; X86-NEXT: mull {{[0-9]+}}(%esp)
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; X86-NEXT: addl %ecx, %edx
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i64 %a, 33
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ret i64 %tmp3
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}
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define i64 @test7(i64 %a) {
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; X64-LABEL: test7:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: shlq $5, %rax
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; X64-NEXT: leaq (%rax,%rdi), %rax
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; X64-NEXT: negq %rax
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; X64-NEXT: retq
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;
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; X86-LABEL: test7:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: .cfi_offset %esi, -8
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %eax, %esi
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; X86-NEXT: shll $5, %esi
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; X86-NEXT: addl %eax, %esi
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; X86-NEXT: movl $-33, %edx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: mull %edx
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; X86-NEXT: subl %ecx, %edx
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; X86-NEXT: subl %esi, %edx
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; X86-NEXT: popl %esi
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i64 %a, -33
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ret i64 %tmp3
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}
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define i64 @testOverflow(i64 %a) {
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; X64-LABEL: testOverflow:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movabsq $9223372036854775807, %rax # imm = 0x7FFFFFFFFFFFFFFF
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; X64-NEXT: imulq %rdi, %rax
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; X64-NEXT: retq
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;
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; X86-LABEL: testOverflow:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: .cfi_offset %esi, -8
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl $-1, %edx
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; X86-NEXT: movl %ecx, %eax
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; X86-NEXT: mull %edx
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; X86-NEXT: movl %ecx, %esi
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; X86-NEXT: shll $31, %esi
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; X86-NEXT: subl %ecx, %esi
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; X86-NEXT: addl %esi, %edx
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; X86-NEXT: subl {{[0-9]+}}(%esp), %edx
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; X86-NEXT: popl %esi
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; X86-NEXT: retl
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entry:
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%tmp3 = mul i64 %a, 9223372036854775807
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ret i64 %tmp3
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}
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