80 lines
2.4 KiB
LLVM
80 lines
2.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-linux-gnu | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s --check-prefix=X64
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declare {i32, i1} @llvm.umul.with.overflow.i32(i32 %a, i32 %b)
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define zeroext i1 @a(i32 %x) nounwind {
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; X86-LABEL: a:
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; X86: # %bb.0:
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; X86-NEXT: movl $3, %eax
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; X86-NEXT: mull {{[0-9]+}}(%esp)
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; X86-NEXT: seto %al
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; X86-NEXT: retl
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;
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; X64-LABEL: a:
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; X64: # %bb.0:
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: movl $3, %ecx
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; X64-NEXT: mull %ecx
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; X64-NEXT: seto %al
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; X64-NEXT: retq
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%res = call {i32, i1} @llvm.umul.with.overflow.i32(i32 %x, i32 3)
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%obil = extractvalue {i32, i1} %res, 1
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ret i1 %obil
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}
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define i32 @test2(i32 %a, i32 %b) nounwind readnone {
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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), %eax
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; X86-NEXT: addl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: addl %eax, %eax
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; X86-NEXT: retl
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;
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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: addl %esi, %edi
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; X64-NEXT: leal (%rdi,%rdi), %eax
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; X64-NEXT: retq
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entry:
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%tmp0 = add i32 %b, %a
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%tmp1 = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %tmp0, i32 2)
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%tmp2 = extractvalue { i32, i1 } %tmp1, 0
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ret i32 %tmp2
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}
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define i32 @test3(i32 %a, i32 %b) nounwind readnone {
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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), %eax
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; X86-NEXT: addl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl $4, %ecx
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; X86-NEXT: mull %ecx
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; X86-NEXT: retl
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;
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; X64-LABEL: test3:
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; X64: # %bb.0: # %entry
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; X64-NEXT: # kill: def $esi killed $esi def $rsi
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; X64-NEXT: # kill: def $edi killed $edi def $rdi
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; X64-NEXT: leal (%rdi,%rsi), %eax
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; X64-NEXT: movl $4, %ecx
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; X64-NEXT: mull %ecx
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; X64-NEXT: retq
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entry:
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%tmp0 = add i32 %b, %a
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%tmp1 = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %tmp0, i32 4)
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%tmp2 = extractvalue { i32, i1 } %tmp1, 0
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ret i32 %tmp2
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}
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; Check that shifts larger than the shift amount type are handled.
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; Intentionally not testing codegen here, only that this doesn't assert.
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declare {i300, i1} @llvm.umul.with.overflow.i300(i300 %a, i300 %b)
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define i300 @test4(i300 %a, i300 %b) nounwind {
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%x = call {i300, i1} @llvm.umul.with.overflow.i300(i300 %a, i300 %b)
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%y = extractvalue {i300, i1} %x, 0
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ret i300 %y
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}
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