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-rw-r--r--test/CodeGen/X86/tailcall-64.ll96
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diff --git a/test/CodeGen/X86/tailcall-64.ll b/test/CodeGen/X86/tailcall-64.ll
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+++ b/test/CodeGen/X86/tailcall-64.ll
@@ -0,0 +1,96 @@
+; RUN: llc < %s | FileCheck %s
+target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-apple-darwin11.4.0"
+
+declare i64 @testi()
+
+define i64 @test_trivial() {
+ %A = tail call i64 @testi()
+ ret i64 %A
+}
+; CHECK: test_trivial:
+; CHECK: jmp _testi ## TAILCALL
+
+
+define i64 @test_noop_bitcast() {
+ %A = tail call i64 @testi()
+ %B = bitcast i64 %A to i64
+ ret i64 %B
+}
+; 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
+
+
+declare { i64, i64 } @testp()
+
+define {i64, i64} @test_pair_trivial() {
+ %A = tail call { i64, i64} @testp()
+ ret { i64, i64} %A
+}
+; CHECK: test_pair_trivial:
+; CHECK: jmp _testp ## TAILCALL
+
+
+
+define {i64, i64} @test_pair_trivial_extract() {
+ %A = tail call { i64, i64} @testp()
+ %x = extractvalue { i64, i64} %A, 0
+ %y = extractvalue { i64, i64} %A, 1
+
+ %b = insertvalue {i64, i64} undef, i64 %x, 0
+ %c = insertvalue {i64, i64} %b, i64 %y, 1
+
+ ret { i64, i64} %c
+}
+
+; CHECK: test_pair_trivial_extract:
+; CHECK: jmp _testp ## TAILCALL
+
+define {i8*, i64} @test_pair_conv_extract() {
+ %A = tail call { i64, i64} @testp()
+ %x = extractvalue { i64, i64} %A, 0
+ %y = extractvalue { i64, i64} %A, 1
+
+ %x1 = inttoptr i64 %x to i8*
+
+ %b = insertvalue {i8*, i64} undef, i8* %x1, 0
+ %c = insertvalue {i8*, i64} %b, i64 %y, 1
+
+ ret { i8*, i64} %c
+}
+
+; CHECK: test_pair_conv_extract:
+; CHECK: jmp _testp ## TAILCALL
+
+
+
+; PR13006
+define { i64, i64 } @crash(i8* %this) {
+ %c = tail call { i64, i64 } @testp()
+ %mrv7 = insertvalue { i64, i64 } %c, i64 undef, 1
+ ret { i64, i64 } %mrv7
+}
+
+
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