llvm-6502/test/Transforms/LICM/2003-12-13-VolatilePromote.ll
Chris Lattner 15beaf7d65 Testcase for PR179
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10455 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-14 04:46:07 +00:00

18 lines
357 B
LLVM

; RUN: llvm-as < %s | opt -licm | llvm-dis | grep -C1 volatile | grep Loop
%X = global int 7
void %testfunc(int %i) {
br label %Loop
Loop:
%x = volatile load int* %X ; Should not promote this to a register
%x2 = add int %x, 1
store int %x2, int* %X
br bool true, label %Out, label %Loop
Out:
ret void
}