Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/umul-with-overflow.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 1172e4bd9c6f |
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; RUN: llc < %s -march=x86 | FileCheck %s declare {i32, i1} @llvm.umul.with.overflow.i32(i32 %a, i32 %b) define zeroext i1 @a(i32 %x) nounwind { %res = call {i32, i1} @llvm.umul.with.overflow.i32(i32 %x, i32 3) %obil = extractvalue {i32, i1} %res, 1 ret i1 %obil ; CHECK-LABEL: a: ; CHECK: mull ; CHECK: seto %al ; CHECK: movzbl %al, %eax ; CHECK: ret } define i32 @test2(i32 %a, i32 %b) nounwind readnone { entry: %tmp0 = add i32 %b, %a %tmp1 = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %tmp0, i32 2) %tmp2 = extractvalue { i32, i1 } %tmp1, 0 ret i32 %tmp2 ; CHECK-LABEL: test2: ; CHECK: addl ; CHECK-NEXT: addl ; CHECK-NEXT: ret } define i32 @test3(i32 %a, i32 %b) nounwind readnone { entry: %tmp0 = add i32 %b, %a %tmp1 = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %tmp0, i32 4) %tmp2 = extractvalue { i32, i1 } %tmp1, 0 ret i32 %tmp2 ; CHECK-LABEL: test3: ; CHECK: addl ; CHECK: mull ; CHECK-NEXT: ret }