diff options
| author | Michael Zolotukhin <mzolotukhin@apple.com> | 2014-05-05 14:46:53 +0000 |
|---|---|---|
| committer | Michael Zolotukhin <mzolotukhin@apple.com> | 2014-05-05 14:46:53 +0000 |
| commit | 1c87e2a3a8a6f06c6ba19dfe0ff09ef82686e603 (patch) | |
| tree | d07de165a8215335f5f281839ef3c755781cd806 | |
| parent | df8640530cf39e4dc32177808bc61c11edf539e8 (diff) | |
| download | llvm-1c87e2a3a8a6f06c6ba19dfe0ff09ef82686e603.tar.gz llvm-1c87e2a3a8a6f06c6ba19dfe0ff09ef82686e603.tar.bz2 llvm-1c87e2a3a8a6f06c6ba19dfe0ff09ef82686e603.tar.xz | |
Fix test from r207966 and add a comment there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207969 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/Transforms/ConstantHoisting/X86/large-immediate-2.ll | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/test/Transforms/ConstantHoisting/X86/large-immediate-2.ll b/test/Transforms/ConstantHoisting/X86/large-immediate-2.ll index 5f23e0a329..883be355bd 100644 --- a/test/Transforms/ConstantHoisting/X86/large-immediate-2.ll +++ b/test/Transforms/ConstantHoisting/X86/large-immediate-2.ll @@ -1,8 +1,10 @@ ; RUN: llc < %s -O3 -march=x86-64 |FileCheck %s define i64 @foo(i1 %z, i192* %p, i192* %q) { -; CHECK: movq 16(%rsi), %rax -; CHECK-NEXT: retq +; If const 128 is hoisted to a variable, then in basic block L_val2 we would +; have %lshr2 = lshr i192 %data2, %const, and the definition of %const would +; be in another basic block. As a result, a very inefficient code might be +; produced. Here we check that this doesn't occur. entry: %data1 = load i192* %p, align 8 %lshr1 = lshr i192 %data1, 128 |