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raw | patch | inline | side by side (parent: bb0cd33)
author | Bill Wendling <isanbard@gmail.com> | |
Mon, 25 Nov 2013 18:05:22 +0000 (18:05 +0000) | ||
committer | Bill Wendling <isanbard@gmail.com> | |
Mon, 25 Nov 2013 18:05:22 +0000 (18:05 +0000) |
I'm not sure how it was checking for the wrong values...
PR18023.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195670 91177308-0d34-0410-b5e6-96231b3b80d8
PR18023.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195670 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/DAGCombiner.cpp | patch | blob | history | |
test/CodeGen/X86/pr18023.ll | [new file with mode: 0644] | patch | blob |
index c126a53611ec58a615d4d7167ea7a2a73c61cd6c..805cc9e0f27f75d8e1e6ee3ae8bae09e4e319652 100644 (file)
Index = STn;
break;
} else if (LoadSDNode *Ldn = dyn_cast<LoadSDNode>(NextInChain)) {
+ if (Ldn->isVolatile()) {
+ Index = NULL;
+ break;
+ }
+
// Save the load node for later. Continue the scan.
AliasLoadNodes.push_back(Ldn);
NextInChain = Ldn->getChain().getNode();
diff --git a/test/CodeGen/X86/pr18023.ll b/test/CodeGen/X86/pr18023.ll
--- /dev/null
@@ -0,0 +1,31 @@
+; RUN: llc < %s -mtriple x86_64-apple-macosx10.9.0 | FileCheck %s
+; PR18023
+
+; CHECK: movabsq $4294967296, %rcx
+; CHECK: movq %rcx, (%rax)
+; CHECK: movl $1, 4(%rax)
+; CHECK: movl $0, 4(%rax)
+; CHECK: movq $1, 4(%rax)
+
+@c = common global i32 0, align 4
+@a = common global [3 x i32] zeroinitializer, align 4
+@b = common global i32 0, align 4
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+
+define void @func() {
+ store i32 1, i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 1), align 4
+ store i32 0, i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 0), align 4
+ %1 = load volatile i32* @b, align 4
+ store i32 1, i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 1), align 4
+ store i32 0, i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 1), align 4
+ %2 = load volatile i32* @b, align 4
+ store i32 1, i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 1), align 4
+ store i32 0, i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 2), align 4
+ %3 = load volatile i32* @b, align 4
+ store i32 3, i32* @c, align 4
+ %4 = load i32* getelementptr inbounds ([3 x i32]* @a, i64 0, i64 1), align 4
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32 %4)
+ ret void
+}
+
+declare i32 @printf(i8*, ...)