25 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -S -passes=instcombine < %s | FileCheck %s3 4; This does not reach a fixpoint, because the global initializer is not in5; folded form. This will not happen if preceded by a GlobalOpt run.6 7target datalayout = "p:8:8"8 9@g = external global i810@c = constant ptr getelementptr inbounds (i8, ptr @g, i64 1)11 12define i1 @test(ptr %p) "instcombine-no-verify-fixpoint" {13; CHECK-LABEL: @test(14; CHECK-NEXT: [[CMP:%.*]] = icmp eq ptr [[P:%.*]], getelementptr inbounds (i8, ptr @g, i64 1)15; CHECK-NEXT: ret i1 [[CMP]]16;17 %alloca = alloca ptr18 call void @llvm.memcpy.p0.p0.i32(ptr %alloca, ptr @c, i32 0, i1 false)19 %load = load ptr, ptr %alloca20 %cmp = icmp eq ptr %p, %load21 ret i1 %cmp22}23 24declare void @llvm.memcpy.p0.p0.i32(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i32, i1 immarg)25