From ddf07e7fb4189a9193de56c5fbc101ebd4ff9a06 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 30 Jan 2004 22:18:47 +0000 Subject: [PATCH] New testcase for better mod/ref information that basicaa can provide llvm-svn: 11023 --- .../BasicAA/2004-01-29-InvariantMemory.llx | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 test/Regression/Transforms/BasicAA/2004-01-29-InvariantMemory.llx diff --git a/test/Regression/Transforms/BasicAA/2004-01-29-InvariantMemory.llx b/test/Regression/Transforms/BasicAA/2004-01-29-InvariantMemory.llx new file mode 100644 index 00000000000..cfc4c480cf4 --- /dev/null +++ b/test/Regression/Transforms/BasicAA/2004-01-29-InvariantMemory.llx @@ -0,0 +1,12 @@ +; RUN: llvm-as < %s | opt -load-vn -gcse -instcombine | llvm-dis | not grep load + +%X = constant [2 x int] [int 4, int 5] + +int %test(int* %Y, long %idx) { + %P = getelementptr [2 x int]* %X, long 0, long %idx + %A = load int* %P ; Load from invariant memory + store int 4, int* %Y ; Store could not be to %X + %B = load int* %P + %C = sub int %A, %B + ret int %C +}