From 7f9f5680ca44aec955cbb42bfa0048d57c9a711a Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Wed, 29 Feb 2012 01:53:13 +0000 Subject: Testcase for r151691. llvm-svn: 151694 --- llvm/test/Transforms/InstCombine/2012-02-28-ICmp.ll | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 llvm/test/Transforms/InstCombine/2012-02-28-ICmp.ll (limited to 'llvm/test') diff --git a/llvm/test/Transforms/InstCombine/2012-02-28-ICmp.ll b/llvm/test/Transforms/InstCombine/2012-02-28-ICmp.ll new file mode 100644 index 00000000000..82cf85fa4cd --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2012-02-28-ICmp.ll @@ -0,0 +1,19 @@ +; RUN: opt < %s -instcombine -S | FileCheck %s +; + +; There should be no transformation. +; CHECK: %a = trunc i32 %x to i8 +; CHECK: %b = icmp ne i8 %a, 0 +; CHECK: %c = and i32 %x, 16711680 +; CHECK: %d = icmp ne i32 %c, 0 +; CHECK: %e = and i1 %b, %d +; CHECK: ret i1 %e + +define i1 @f1(i32 %x) { + %a = trunc i32 %x to i8 + %b = icmp ne i8 %a, 0 + %c = and i32 %x, 16711680 + %d = icmp ne i32 %c, 0 + %e = and i1 %b, %d + ret i1 %e +} -- cgit v1.2.3