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-rw-r--r--test/CodeGen/X86/fold-load.ll26
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
+
+}
+
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