From 9adf151b3d46740ac103c4e21fbdec66d6ef1cdf Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Tue, 24 May 2011 18:24:08 +0000 Subject: Make DecomposeGEPExpression check SimplifyInstruction only after checking for a GEP, so that it matches what GetUnderlyingObject does. This fixes an obscure bug turned up by bugpoint in the testcase for PR9931. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131971 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Analysis/BasicAA/underlying-value.ll | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 test/Analysis/BasicAA/underlying-value.ll (limited to 'test') diff --git a/test/Analysis/BasicAA/underlying-value.ll b/test/Analysis/BasicAA/underlying-value.ll new file mode 100644 index 0000000..0671c82 --- /dev/null +++ b/test/Analysis/BasicAA/underlying-value.ll @@ -0,0 +1,25 @@ +; RUN: opt -basicaa -licm -S < %s +; PR9931 + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" + +define void @func_20() nounwind { +entry: + br label %for.cond + +for.cond: ; preds = %for.cond2, %entry + br i1 undef, label %for.cond2, label %for.end22 + +for.cond2: ; preds = %for.body5, %for.cond + br i1 false, label %for.body5, label %for.cond + +for.body5: ; preds = %for.cond2 + %arrayidx = getelementptr inbounds [2 x i64]* undef, i32 0, i64 0 + %tmp7 = load i64* %arrayidx, align 8 + %arrayidx9 = getelementptr inbounds [2 x i64]* undef, i32 0, i64 undef + %tmp10 = load i64* %arrayidx9, align 8 + br label %for.cond2 + +for.end22: ; preds = %for.cond + ret void +} -- cgit v1.1