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Imported Upstream version 5.18.0.167
Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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410
external/llvm/test/CodeGen/X86/sibcall.ll
vendored
410
external/llvm/test/CodeGen/X86/sibcall.ll
vendored
@ -1,410 +0,0 @@
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; RUN: llc < %s -mtriple=i686-linux -mcpu=core2 -mattr=+sse2 -asm-verbose=false | FileCheck %s -check-prefix=32
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; RUN: llc < %s -mtriple=x86_64-linux -mcpu=core2 -mattr=+sse2 -asm-verbose=false | FileCheck %s -check-prefix=64
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; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -mcpu=core2 -mattr=+sse2 -asm-verbose=false | FileCheck %s -check-prefix=X32ABI
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define void @t1(i32 %x) nounwind ssp {
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entry:
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; 32-LABEL: t1:
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; 32: jmp {{_?}}foo
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; 64-LABEL: t1:
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; 64: jmp {{_?}}foo
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; X32ABI-LABEL: t1:
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; X32ABI: jmp {{_?}}foo
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tail call void @foo() nounwind
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ret void
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}
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declare void @foo()
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define void @t2() nounwind ssp {
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entry:
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; 32-LABEL: t2:
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; 32: jmp {{_?}}foo2
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; 64-LABEL: t2:
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; 64: jmp {{_?}}foo2
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; X32ABI-LABEL: t2:
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; X32ABI: jmp {{_?}}foo2
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%0 = tail call i32 @foo2() nounwind
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ret void
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}
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declare i32 @foo2()
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define void @t3() nounwind ssp {
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entry:
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; 32-LABEL: t3:
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; 32: jmp {{_?}}foo3
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; 64-LABEL: t3:
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; 64: jmp {{_?}}foo3
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; X32ABI-LABEL: t3:
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; X32ABI: jmp {{_?}}foo3
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%0 = tail call i32 @foo3() nounwind
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ret void
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}
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declare i32 @foo3()
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define void @t4(void (i32)* nocapture %x) nounwind ssp {
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entry:
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; 32-LABEL: t4:
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; 32: calll *
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; FIXME: gcc can generate a tailcall for this. But it's tricky.
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; 64-LABEL: t4:
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; 64-NOT: call
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; 64: jmpq *
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; X32ABI-LABEL: t4:
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; X32ABI-NOT: call
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; X32ABI: jmpq *
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tail call void %x(i32 0) nounwind
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ret void
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}
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define void @t5(void ()* nocapture %x) nounwind ssp {
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entry:
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; 32-LABEL: t5:
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; 32-NOT: call
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; 32: jmpl *4(%esp)
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; 64-LABEL: t5:
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; 64-NOT: call
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; 64: jmpq *%rdi
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; X32ABI-LABEL: t5:
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; X32ABI-NOT: call
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; FIXME: This isn't needed since x32 psABI specifies that callers must
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; zero-extend pointers passed in registers.
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; X32ABI: movl %edi, %eax
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; X32ABI: jmpq *%rax
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tail call void %x() nounwind
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ret void
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}
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define i32 @t6(i32 %x) nounwind ssp {
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entry:
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; 32-LABEL: t6:
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; 32: calll {{_?}}t6
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; 32: jmp {{_?}}bar
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; 64-LABEL: t6:
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; 64: jmp {{_?}}t6
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; 64: jmp {{_?}}bar
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; X32ABI-LABEL: t6:
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; X32ABI: jmp {{_?}}t6
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; X32ABI: jmp {{_?}}bar
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%0 = icmp slt i32 %x, 10
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br i1 %0, label %bb, label %bb1
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bb:
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%1 = add nsw i32 %x, -1
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%2 = tail call i32 @t6(i32 %1) nounwind ssp
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ret i32 %2
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bb1:
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%3 = tail call i32 @bar(i32 %x) nounwind
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ret i32 %3
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}
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declare i32 @bar(i32)
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define i32 @t7(i32 %a, i32 %b, i32 %c) nounwind ssp {
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entry:
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; 32-LABEL: t7:
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; 32: jmp {{_?}}bar2
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; 64-LABEL: t7:
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; 64: jmp {{_?}}bar2
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; X32ABI-LABEL: t7:
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; X32ABI: jmp {{_?}}bar2
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%0 = tail call i32 @bar2(i32 %a, i32 %b, i32 %c) nounwind
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ret i32 %0
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}
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declare i32 @bar2(i32, i32, i32)
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define signext i16 @t8() nounwind ssp {
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entry:
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; 32-LABEL: t8:
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; 32: jmp {{_?}}bar3
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; 64-LABEL: t8:
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; 64: jmp {{_?}}bar3
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; X32ABI-LABEL: t8:
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; X32ABI: jmp {{_?}}bar3
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%0 = tail call signext i16 @bar3() nounwind ; <i16> [#uses=1]
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ret i16 %0
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}
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declare signext i16 @bar3()
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define signext i16 @t9(i32 (i32)* nocapture %x) nounwind ssp {
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entry:
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; 32-LABEL: t9:
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; 32: calll *
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; 64-LABEL: t9:
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; 64: jmpq *
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; X32ABI-LABEL: t9:
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; X32ABI: jmpq *
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%0 = bitcast i32 (i32)* %x to i16 (i32)*
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%1 = tail call signext i16 %0(i32 0) nounwind
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ret i16 %1
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}
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define void @t10() nounwind ssp {
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entry:
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; 32-LABEL: t10:
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; 32: calll
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; 64-LABEL: t10:
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; 64: callq
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; X32ABI-LABEL: t10:
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; X32ABI: callq
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%0 = tail call i32 @foo4() noreturn nounwind
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unreachable
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}
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declare i32 @foo4()
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define i32 @t11(i32 %x, i32 %y, i32 %z.0, i32 %z.1, i32 %z.2) nounwind ssp {
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; In 32-bit mode, it's emitting a bunch of dead loads that are not being
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; eliminated currently.
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; 32-LABEL: t11:
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; 32-NOT: subl ${{[0-9]+}}, %esp
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; 32: je
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; 32-NOT: movl
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; 32-NOT: addl ${{[0-9]+}}, %esp
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; 32: jmp {{_?}}foo5
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; 64-LABEL: t11:
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; 64-NOT: subq ${{[0-9]+}}, %rsp
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; 64-NOT: addq ${{[0-9]+}}, %rsp
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; 64: jmp {{_?}}foo5
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; X32ABI-LABEL: t11:
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; X32ABI-NOT: subl ${{[0-9]+}}, %esp
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; X32ABI-NOT: addl ${{[0-9]+}}, %esp
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; X32ABI: jmp {{_?}}foo5
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entry:
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%0 = icmp eq i32 %x, 0
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br i1 %0, label %bb6, label %bb
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bb:
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%1 = tail call i32 @foo5(i32 %x, i32 %y, i32 %z.0, i32 %z.1, i32 %z.2) nounwind
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ret i32 %1
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bb6:
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ret i32 0
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}
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declare i32 @foo5(i32, i32, i32, i32, i32)
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%struct.t = type { i32, i32, i32, i32, i32 }
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define i32 @t12(i32 %x, i32 %y, %struct.t* byval align 4 %z) nounwind ssp {
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; 32-LABEL: t12:
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; 32-NOT: subl ${{[0-9]+}}, %esp
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; 32-NOT: addl ${{[0-9]+}}, %esp
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; 32: jmp {{_?}}foo6
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; 64-LABEL: t12:
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; 64-NOT: subq ${{[0-9]+}}, %rsp
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; 64-NOT: addq ${{[0-9]+}}, %rsp
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; 64: jmp {{_?}}foo6
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; X32ABI-LABEL: t12:
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; X32ABI-NOT: subl ${{[0-9]+}}, %esp
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; X32ABI-NOT: addl ${{[0-9]+}}, %esp
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; X32ABI: jmp {{_?}}foo6
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entry:
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%0 = icmp eq i32 %x, 0
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br i1 %0, label %bb2, label %bb
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bb:
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%1 = tail call i32 @foo6(i32 %x, i32 %y, %struct.t* byval align 4 %z) nounwind
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ret i32 %1
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bb2:
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ret i32 0
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}
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declare i32 @foo6(i32, i32, %struct.t* byval align 4)
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; rdar://r7717598
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%struct.ns = type { i32, i32 }
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%struct.cp = type { float, float, float, float, float }
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define %struct.ns* @t13(%struct.cp* %yy) nounwind ssp {
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; 32-LABEL: t13:
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; 32-NOT: jmp
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; 32: calll
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; 32: ret
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; 64-LABEL: t13:
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; 64-NOT: jmp
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; 64: callq
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; 64: ret
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; X32ABI-LABEL: t13:
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; X32ABI-NOT: jmp
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; X32ABI: callq
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; X32ABI: ret
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entry:
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%0 = tail call fastcc %struct.ns* @foo7(%struct.cp* byval align 4 %yy, i8 signext 0) nounwind
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ret %struct.ns* %0
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}
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; rdar://6195379
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; llvm can't do sibcall for this in 32-bit mode (yet).
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declare fastcc %struct.ns* @foo7(%struct.cp* byval align 4, i8 signext) nounwind ssp
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%struct.__block_descriptor = type { i64, i64 }
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%struct.__block_descriptor_withcopydispose = type { i64, i64, i8*, i8* }
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%struct.__block_literal_1 = type { i8*, i32, i32, i8*, %struct.__block_descriptor* }
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%struct.__block_literal_2 = type { i8*, i32, i32, i8*, %struct.__block_descriptor_withcopydispose*, void ()* }
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define void @t14(%struct.__block_literal_2* nocapture %.block_descriptor) nounwind ssp {
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entry:
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; 64-LABEL: t14:
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; 64: movq 32(%rdi)
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; 64-NOT: movq 16(%rdi)
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; 64: jmpq *16({{%rdi|%rax}})
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; X32ABI-LABEL: t14:
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; X32ABI: movl 20(%edi), %edi
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; X32ABI-NEXT: movl 12(%edi), %eax
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; X32ABI-NEXT: jmpq *%rax
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%0 = getelementptr inbounds %struct.__block_literal_2, %struct.__block_literal_2* %.block_descriptor, i64 0, i32 5 ; <void ()**> [#uses=1]
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%1 = load void ()*, void ()** %0, align 8 ; <void ()*> [#uses=2]
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%2 = bitcast void ()* %1 to %struct.__block_literal_1* ; <%struct.__block_literal_1*> [#uses=1]
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%3 = getelementptr inbounds %struct.__block_literal_1, %struct.__block_literal_1* %2, i64 0, i32 3 ; <i8**> [#uses=1]
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%4 = load i8*, i8** %3, align 8 ; <i8*> [#uses=1]
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%5 = bitcast i8* %4 to void (i8*)* ; <void (i8*)*> [#uses=1]
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%6 = bitcast void ()* %1 to i8* ; <i8*> [#uses=1]
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tail call void %5(i8* %6) nounwind
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ret void
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}
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; rdar://7726868
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%struct.foo = type { [4 x i32] }
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define void @t15(%struct.foo* noalias sret %agg.result) nounwind {
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; 32-LABEL: t15:
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; 32: calll {{_?}}f
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; 32: retl $4
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; 64-LABEL: t15:
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; 64: callq {{_?}}f
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; 64: retq
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; X32ABI-LABEL: t15:
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; X32ABI: callq {{_?}}f
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; X32ABI: retq
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tail call fastcc void @f(%struct.foo* noalias sret %agg.result) nounwind
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ret void
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}
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declare void @f(%struct.foo* noalias sret) nounwind
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define void @t16() nounwind ssp {
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entry:
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; 32-LABEL: t16:
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; 32: calll {{_?}}bar4
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; 32: fstp
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; 64-LABEL: t16:
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; 64: jmp {{_?}}bar4
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; X32ABI-LABEL: t16:
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; X32ABI: jmp {{_?}}bar4
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%0 = tail call double @bar4() nounwind
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ret void
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}
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declare double @bar4()
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; rdar://6283267
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define void @t17() nounwind ssp {
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entry:
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; 32-LABEL: t17:
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; 32: jmp {{_?}}bar5
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; 64-LABEL: t17:
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; 64: xorl %eax, %eax
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; 64: jmp {{_?}}bar5
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; X32ABI-LABEL: t17:
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; X32ABI: xorl %eax, %eax
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; X32ABI: jmp {{_?}}bar5
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tail call void (...) @bar5() nounwind
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ret void
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}
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declare void @bar5(...)
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; rdar://7774847
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define void @t18() nounwind ssp {
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entry:
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; 32-LABEL: t18:
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; 32: calll {{_?}}bar6
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; 32: fstp %st(0)
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; 64-LABEL: t18:
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; 64: xorl %eax, %eax
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; 64: jmp {{_?}}bar6
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; X32ABI-LABEL: t18:
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; X32ABI: xorl %eax, %eax
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; X32ABI: jmp {{_?}}bar6
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%0 = tail call double (...) @bar6() nounwind
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ret void
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}
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declare double @bar6(...)
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define void @t19() alignstack(32) nounwind {
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entry:
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; CHECK-LABEL: t19:
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; CHECK: andl $-32
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; CHECK: calll {{_?}}foo
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; X32ABI-LABEL: t19:
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; X32ABI: andl $-32
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; X32ABI: callq {{_?}}foo
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tail call void @foo() nounwind
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ret void
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}
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; If caller / callee calling convention mismatch then check if the return
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; values are returned in the same registers.
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; rdar://7874780
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define double @t20(double %x) nounwind {
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entry:
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; 32-LABEL: t20:
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; 32: calll {{_?}}foo20
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; 32: fldl (%esp)
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; 64-LABEL: t20:
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; 64: jmp {{_?}}foo20
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; X32ABI-LABEL: t20:
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; X32ABI: jmp {{_?}}foo20
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%0 = tail call fastcc double @foo20(double %x) nounwind
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ret double %0
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}
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declare fastcc double @foo20(double) nounwind
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