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authorDan Gohman <gohman@apple.com>2009-01-27 00:40:27 +0000
committerDan Gohman <gohman@apple.com>2009-01-27 00:40:27 +0000
commit4e1fae512514a705722bc978dfba7f6f546a8cf3 (patch)
treebec8391b5522befd5d8f601e37c272e4c3c9ee86 /test/CodeGen/X86/red-zone.ll
parent336b636dd7d9f690cae4eff27e46b138c1f586db (diff)
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Add a regression test for x86-64 red zone usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63075 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/red-zone.ll')
-rw-r--r--test/CodeGen/X86/red-zone.ll13
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/red-zone.ll b/test/CodeGen/X86/red-zone.ll
new file mode 100644
index 0000000000..60e16b05ca
--- /dev/null
+++ b/test/CodeGen/X86/red-zone.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | llc -march=x86-64 > %t
+; RUN: not grep subq %t
+; RUN: not grep addq %t
+; RUN: grep {\\-4(%%rsp)} %t | count 2
+; RUN: llvm-as < %s | llc -march=x86-64 -disable-red-zone > %t
+; RUN: grep subq %t | count 1
+; RUN: grep addq %t | count 1
+
+define x86_fp80 @f0(float %f) nounwind readnone {
+entry:
+ %0 = fpext float %f to x86_fp80 ; <x86_fp80> [#uses=1]
+ ret x86_fp80 %0
+}