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| author | Chris Lattner <sabre@nondot.org> | 2012-06-01 05:16:33 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2012-06-01 05:16:33 +0000 |
| commit | 5b0d9465375c4e175f5805038c5ef1d7d11193bd (patch) | |
| tree | 363630bb125a33d74d278e9a9c90b1e4b9f7792a /test/CodeGen/X86/tailcall-64.ll | |
| parent | 09c14c083676eb83867e349e2b549b22ab1ed5c3 (diff) | |
| download | llvm-5b0d9465375c4e175f5805038c5ef1d7d11193bd.tar.gz llvm-5b0d9465375c4e175f5805038c5ef1d7d11193bd.tar.bz2 llvm-5b0d9465375c4e175f5805038c5ef1d7d11193bd.tar.xz | |
enhance getNoopInput to know about vector<->vector bitcasts of legal
types, as well as int<->ptr casts. This allows us to tailcall functions
with some trivial casts between the call and return (i.e. because the
return types disagree).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157798 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/tailcall-64.ll')
| -rw-r--r-- | test/CodeGen/X86/tailcall-64.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/X86/tailcall-64.ll b/test/CodeGen/X86/tailcall-64.ll index 569a67c253..a3ef2dc8ef 100644 --- a/test/CodeGen/X86/tailcall-64.ll +++ b/test/CodeGen/X86/tailcall-64.ll @@ -19,3 +19,25 @@ define i64 @test_noop_bitcast() { } ; CHECK: test_noop_bitcast: ; CHECK: jmp _testi ## TAILCALL + + +; Tail call shouldn't be blocked by no-op inttoptr. +define i8* @test_inttoptr() { + %A = tail call i64 @testi() + %B = inttoptr i64 %A to i8* + ret i8* %B +} + +; CHECK: test_inttoptr: +; CHECK: jmp _testi ## TAILCALL + + +declare <4 x float> @testv() + +define <4 x i32> @test_vectorbitcast() { + %A = tail call <4 x float> @testv() + %B = bitcast <4 x float> %A to <4 x i32> + ret <4 x i32> %B +} +; CHECK: test_vectorbitcast: +; CHECK: jmp _testv ## TAILCALL |