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authorDan Gohman <gohman@apple.com>2009-05-04 19:50:33 +0000
committerDan Gohman <gohman@apple.com>2009-05-04 19:50:33 +0000
commit7d04e4a7c0a803bc7ab04986ad184291338f42da (patch)
treef17a94c7b843d5d70a58a372982558c4dc3c776a /test
parent28f1412c97fc0740d6743c5226a4ddd65b72c891 (diff)
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X86FastISel doesn't support the -tailcallopt ABI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70902 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/CodeGen/X86/fast-isel-tailcall.ll13
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fast-isel-tailcall.ll b/test/CodeGen/X86/fast-isel-tailcall.ll
new file mode 100644
index 0000000..6f4d202
--- /dev/null
+++ b/test/CodeGen/X86/fast-isel-tailcall.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | llc -fast-isel -tailcallopt -march=x86 | not grep add
+; PR4154
+
+; On x86, -tailcallopt changes the ABI so the caller shouldn't readjust
+; the stack pointer after the call in this code.
+
+define i32 @stub(i8* %t0) nounwind {
+entry:
+ %t1 = load i32* inttoptr (i32 139708680 to i32*) ; <i32> [#uses=1]
+ %t2 = bitcast i8* %t0 to i32 (i32)* ; <i32 (i32)*> [#uses=1]
+ %t3 = call fastcc i32 %t2(i32 %t1) ; <i32> [#uses=1]
+ ret i32 %t3
+}