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| author | Chris Lattner <sabre@nondot.org> | 2010-01-07 21:59:23 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-01-07 21:59:23 +0000 |
| commit | bd1fccfad59f24267b6fa8b898711d63a3574c7d (patch) | |
| tree | f2ecf29e53c17720fd788ff1f51e8c49d28fad86 /test/CodeGen/X86/fold-load.ll | |
| parent | ef7634ca48c7ed33a88bd80207f3457c07ad85f2 (diff) | |
| download | external_llvm-bd1fccfad59f24267b6fa8b898711d63a3574c7d.zip external_llvm-bd1fccfad59f24267b6fa8b898711d63a3574c7d.tar.gz external_llvm-bd1fccfad59f24267b6fa8b898711d63a3574c7d.tar.bz2 | |
Fix rdar://7517201, a regression introduced by r92849.
When folding a and(any_ext(load)) both the any_ext and the
load have to have only a single use.
This removes the anyext-uses.ll testcase which started failing
because it is unreduced and unclear what it is testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92950 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/fold-load.ll')
| -rw-r--r-- | test/CodeGen/X86/fold-load.ll | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/test/CodeGen/X86/fold-load.ll b/test/CodeGen/X86/fold-load.ll index eb182da..5525af2 100644 --- a/test/CodeGen/X86/fold-load.ll +++ b/test/CodeGen/X86/fold-load.ll @@ -1,11 +1,12 @@ -; RUN: llc < %s -march=x86 +; RUN: llc < %s -march=x86 | FileCheck %s %struct._obstack_chunk = type { i8*, %struct._obstack_chunk*, [4 x i8] } %struct.obstack = type { i32, %struct._obstack_chunk*, i8*, i8*, i8*, i32, i32, %struct._obstack_chunk* (...)*, void (...)*, i8*, i8 } @stmt_obstack = external global %struct.obstack ; <%struct.obstack*> [#uses=1] -define void @expand_start_bindings() { +; This should just not crash. +define void @test1() nounwind { entry: - br i1 false, label %cond_true, label %cond_next + br i1 true, label %cond_true, label %cond_next cond_true: ; preds = %entry %new_size.0.i = select i1 false, i32 0, i32 0 ; <i32> [#uses=1] @@ -25,3 +26,22 @@ cond_false30.i: ; preds = %cond_true cond_next: ; preds = %entry ret void } + + + +define i32 @test2(i16* %P, i16* %Q) nounwind { + %A = load i16* %P, align 4 ; <i16> [#uses=11] + %C = zext i16 %A to i32 ; <i32> [#uses=1] + %D = and i32 %C, 255 ; <i32> [#uses=1] + br label %L +L: + + store i16 %A, i16* %Q + ret i32 %D + +; CHECK: test2: +; CHECK: movl 4(%esp), %eax +; CHECK-NEXT: movzwl (%eax), %ecx + +} + |