Mercurial > hg > CbC > CbC_llvm
view test/Transforms/InstCombine/sdiv-guard.ll @ 147:c2174574ed3a
LLVM 10
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Wed, 14 Aug 2019 16:55:33 +0900 |
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instcombine -S | FileCheck %s declare void @llvm.experimental.guard(i1, ...) ; Regression test. If %flag is false then %s == 0 and guard should be triggered. define i32 @a(i1 %flag, i32 %X) nounwind readnone { ; CHECK-LABEL: @a( ; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[X:%.*]], 0 ; CHECK-NEXT: [[CMP:%.*]] = and i1 [[CMP1]], [[FLAG:%.*]] ; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[CMP]]) #1 [ "deopt"() ] ; CHECK-NEXT: [[R:%.*]] = sdiv i32 100, [[X]] ; CHECK-NEXT: ret i32 [[R]] ; %s = select i1 %flag, i32 %X, i32 0 %cmp = icmp ne i32 %s, 0 call void(i1, ...) @llvm.experimental.guard( i1 %cmp )[ "deopt"() ] %r = sdiv i32 100, %s ret i32 %r }