From b80d5614b02a56709f72656df8ace6415ab64f4a Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 10 Sep 2008 23:30:57 +0000 Subject: Fix an icmp+sdiv optimization to check for and handle an overflow condition. This fixes PR2740. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/div-cmp-overflow.ll | 8 ++++++++ 1 file changed, 8 insertions(+) create mode 100644 test/Transforms/InstCombine/div-cmp-overflow.ll (limited to 'test') diff --git a/test/Transforms/InstCombine/div-cmp-overflow.ll b/test/Transforms/InstCombine/div-cmp-overflow.ll new file mode 100644 index 0000000..9276c96 --- /dev/null +++ b/test/Transforms/InstCombine/div-cmp-overflow.ll @@ -0,0 +1,8 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep sdiv +; PR2740 + +define i1 @func_75(i32 %i2) nounwind { + %i3 = sdiv i32 %i2, -1328634635 + %i4 = icmp eq i32 %i3, -1 + ret i1 %i4 +} -- cgit v1.1