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llvm-mirror/test/CodeGen/X86/sibcall.ll
Philip Reames dd91c14e21 [Peephole] Allow folding loads into instructions w/multiple uses (such as test64rr) 
Peephole opt has a one use limitation which appears to be accidental. The function being used was incorrectly documented as returning whether the def had one *user*, but instead returned true only when there was one *use*. Add a corresponding hasOneNonDbgUser helper, and adjust peephole-opt to use the appropriate one.

All of the actual folding code handles multiple uses within a single instruction. That codepath is well exercised through instruction selection.

Differential Revision: https://reviews.llvm.org/D63656

llvm-svn: 364336
2019-06-25 17:29:18 +00:00

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs < %s -mtriple=i686-linux -mcpu=core2 -mattr=+sse2 | FileCheck %s --check-prefix=X86
; RUN: llc -verify-machineinstrs < %s -mtriple=x86_64-linux -mcpu=core2 -mattr=+sse2 | FileCheck %s --check-prefix=X64
; RUN: llc -verify-machineinstrs < %s -mtriple=x86_64-linux-gnux32 -mcpu=core2 -mattr=+sse2 | FileCheck %s --check-prefix=X32
define void @t1(i32 %x) nounwind ssp {
; X86-LABEL: t1:
; X86: # %bb.0:
; X86-NEXT: jmp foo # TAILCALL
;
; X64-LABEL: t1:
; X64: # %bb.0:
; X64-NEXT: jmp foo # TAILCALL
;
; X32-LABEL: t1:
; X32: # %bb.0:
; X32-NEXT: jmp foo # TAILCALL
tail call void @foo() nounwind
ret void
}
declare void @foo()
define void @t2() nounwind ssp {
; X86-LABEL: t2:
; X86: # %bb.0:
; X86-NEXT: jmp foo2 # TAILCALL
;
; X64-LABEL: t2:
; X64: # %bb.0:
; X64-NEXT: jmp foo2 # TAILCALL
;
; X32-LABEL: t2:
; X32: # %bb.0:
; X32-NEXT: jmp foo2 # TAILCALL
%t0 = tail call i32 @foo2() nounwind
ret void
}
declare i32 @foo2()
define void @t3() nounwind ssp {
; X86-LABEL: t3:
; X86: # %bb.0:
; X86-NEXT: jmp foo3 # TAILCALL
;
; X64-LABEL: t3:
; X64: # %bb.0:
; X64-NEXT: jmp foo3 # TAILCALL
;
; X32-LABEL: t3:
; X32: # %bb.0:
; X32-NEXT: jmp foo3 # TAILCALL
%t0 = tail call i32 @foo3() nounwind
ret void
}
declare i32 @foo3()
define void @t4(void (i32)* nocapture %x) nounwind ssp {
; X86-LABEL: t4:
; X86: # %bb.0:
; X86-NEXT: subl $12, %esp
; X86-NEXT: movl $0, (%esp)
; X86-NEXT: calll *{{[0-9]+}}(%esp)
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: t4:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: xorl %edi, %edi
; X64-NEXT: jmpq *%rax # TAILCALL
;
; X32-LABEL: t4:
; X32: # %bb.0:
; X32-NEXT: movl %edi, %eax
; X32-NEXT: xorl %edi, %edi
; X32-NEXT: jmpq *%rax # TAILCALL
tail call void %x(i32 0) nounwind
ret void
}
; FIXME: This isn't needed since x32 psABI specifies that callers must
; zero-extend pointers passed in registers.
define void @t5(void ()* nocapture %x) nounwind ssp {
; X86-LABEL: t5:
; X86: # %bb.0:
; X86-NEXT: jmpl *{{[0-9]+}}(%esp) # TAILCALL
;
; X64-LABEL: t5:
; X64: # %bb.0:
; X64-NEXT: jmpq *%rdi # TAILCALL
;
; X32-LABEL: t5:
; X32: # %bb.0:
; X32-NEXT: movl %edi, %eax
; X32-NEXT: jmpq *%rax # TAILCALL
tail call void %x() nounwind
ret void
}
; Basically the same test as t5, except pass the function pointer on the stack
; for x86_64.
define void @t5_x64(i32, i32, i32, i32, i32, i32, void ()* nocapture %x) nounwind ssp {
; X86-LABEL: t5_x64:
; X86: # %bb.0:
; X86-NEXT: jmpl *{{[0-9]+}}(%esp) # TAILCALL
;
; X64-LABEL: t5_x64:
; X64: # %bb.0:
; X64-NEXT: jmpq *{{[0-9]+}}(%rsp) # TAILCALL
;
; X32-LABEL: t5_x64:
; X32: # %bb.0:
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: jmpq *%rax # TAILCALL
tail call void %x() nounwind
ret void
}
define i32 @t6(i32 %x) nounwind ssp {
; X86-LABEL: t6:
; X86: # %bb.0:
; X86-NEXT: subl $12, %esp
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: cmpl $9, %eax
; X86-NEXT: jg .LBB6_2
; X86-NEXT: # %bb.1: # %bb
; X86-NEXT: decl %eax
; X86-NEXT: movl %eax, (%esp)
; X86-NEXT: calll t6
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
; X86-NEXT: .LBB6_2: # %bb1
; X86-NEXT: addl $12, %esp
; X86-NEXT: jmp bar # TAILCALL
;
; X64-LABEL: t6:
; X64: # %bb.0:
; X64-NEXT: cmpl $9, %edi
; X64-NEXT: jg .LBB6_2
; X64-NEXT: # %bb.1: # %bb
; X64-NEXT: decl %edi
; X64-NEXT: jmp t6 # TAILCALL
; X64-NEXT: .LBB6_2: # %bb1
; X64-NEXT: jmp bar # TAILCALL
;
; X32-LABEL: t6:
; X32: # %bb.0:
; X32-NEXT: cmpl $9, %edi
; X32-NEXT: jg .LBB6_2
; X32-NEXT: # %bb.1: # %bb
; X32-NEXT: decl %edi
; X32-NEXT: jmp t6 # TAILCALL
; X32-NEXT: .LBB6_2: # %bb1
; X32-NEXT: jmp bar # TAILCALL
%t0 = icmp slt i32 %x, 10
br i1 %t0, label %bb, label %bb1
bb:
%t1 = add nsw i32 %x, -1
%t2 = tail call i32 @t6(i32 %t1) nounwind ssp
ret i32 %t2
bb1:
%t3 = tail call i32 @bar(i32 %x) nounwind
ret i32 %t3
}
declare i32 @bar(i32)
define i32 @t7(i32 %a, i32 %b, i32 %c) nounwind ssp {
; X86-LABEL: t7:
; X86: # %bb.0:
; X86-NEXT: jmp bar2 # TAILCALL
;
; X64-LABEL: t7:
; X64: # %bb.0:
; X64-NEXT: jmp bar2 # TAILCALL
;
; X32-LABEL: t7:
; X32: # %bb.0:
; X32-NEXT: jmp bar2 # TAILCALL
%t0 = tail call i32 @bar2(i32 %a, i32 %b, i32 %c) nounwind
ret i32 %t0
}
declare i32 @bar2(i32, i32, i32)
define signext i16 @t8() nounwind ssp {
; X86-LABEL: t8:
; X86: # %bb.0: # %entry
; X86-NEXT: jmp bar3 # TAILCALL
;
; X64-LABEL: t8:
; X64: # %bb.0: # %entry
; X64-NEXT: jmp bar3 # TAILCALL
;
; X32-LABEL: t8:
; X32: # %bb.0: # %entry
; X32-NEXT: jmp bar3 # TAILCALL
entry:
%0 = tail call signext i16 @bar3() nounwind ; <i16> [#uses=1]
ret i16 %0
}
declare signext i16 @bar3()
define signext i16 @t9(i32 (i32)* nocapture %x) nounwind ssp {
; X86-LABEL: t9:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: movl $0, (%esp)
; X86-NEXT: calll *{{[0-9]+}}(%esp)
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: t9:
; X64: # %bb.0: # %entry
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: xorl %edi, %edi
; X64-NEXT: jmpq *%rax # TAILCALL
;
; X32-LABEL: t9:
; X32: # %bb.0: # %entry
; X32-NEXT: movl %edi, %eax
; X32-NEXT: xorl %edi, %edi
; X32-NEXT: jmpq *%rax # TAILCALL
entry:
%0 = bitcast i32 (i32)* %x to i16 (i32)*
%1 = tail call signext i16 %0(i32 0) nounwind
ret i16 %1
}
define void @t10() nounwind ssp {
; X86-LABEL: t10:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: calll foo4
;
; X64-LABEL: t10:
; X64: # %bb.0: # %entry
; X64-NEXT: pushq %rax
; X64-NEXT: callq foo4
;
; X32-LABEL: t10:
; X32: # %bb.0: # %entry
; X32-NEXT: pushq %rax
; X32-NEXT: callq foo4
entry:
%0 = tail call i32 @foo4() noreturn nounwind
unreachable
}
declare i32 @foo4()
; In 32-bit mode, it's emitting a bunch of dead loads that are not being
; eliminated currently.
define i32 @t11(i32 %x, i32 %y, i32 %z.0, i32 %z.1, i32 %z.2) nounwind ssp {
; X86-LABEL: t11:
; X86: # %bb.0: # %entry
; X86-NEXT: cmpl $0, {{[0-9]+}}(%esp)
; X86-NEXT: je .LBB11_1
; X86-NEXT: # %bb.2: # %bb
; X86-NEXT: jmp foo5 # TAILCALL
; X86-NEXT: .LBB11_1: # %bb6
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: retl
;
; X64-LABEL: t11:
; X64: # %bb.0: # %entry
; X64-NEXT: testl %edi, %edi
; X64-NEXT: je .LBB11_1
; X64-NEXT: # %bb.2: # %bb
; X64-NEXT: jmp foo5 # TAILCALL
; X64-NEXT: .LBB11_1: # %bb6
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
;
; X32-LABEL: t11:
; X32: # %bb.0: # %entry
; X32-NEXT: testl %edi, %edi
; X32-NEXT: je .LBB11_1
; X32-NEXT: # %bb.2: # %bb
; X32-NEXT: jmp foo5 # TAILCALL
; X32-NEXT: .LBB11_1: # %bb6
; X32-NEXT: xorl %eax, %eax
; X32-NEXT: retq
entry:
%0 = icmp eq i32 %x, 0
br i1 %0, label %bb6, label %bb
bb:
%1 = tail call i32 @foo5(i32 %x, i32 %y, i32 %z.0, i32 %z.1, i32 %z.2) nounwind
ret i32 %1
bb6:
ret i32 0
}
declare i32 @foo5(i32, i32, i32, i32, i32)
%struct.t = type { i32, i32, i32, i32, i32 }
define i32 @t12(i32 %x, i32 %y, %struct.t* byval align 4 %z) nounwind ssp {
; X86-LABEL: t12:
; X86: # %bb.0: # %entry
; X86-NEXT: cmpl $0, {{[0-9]+}}(%esp)
; X86-NEXT: je .LBB12_1
; X86-NEXT: # %bb.2: # %bb
; X86-NEXT: jmp foo6 # TAILCALL
; X86-NEXT: .LBB12_1: # %bb2
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: retl
;
; X64-LABEL: t12:
; X64: # %bb.0: # %entry
; X64-NEXT: testl %edi, %edi
; X64-NEXT: je .LBB12_1
; X64-NEXT: # %bb.2: # %bb
; X64-NEXT: jmp foo6 # TAILCALL
; X64-NEXT: .LBB12_1: # %bb2
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
;
; X32-LABEL: t12:
; X32: # %bb.0: # %entry
; X32-NEXT: testl %edi, %edi
; X32-NEXT: je .LBB12_1
; X32-NEXT: # %bb.2: # %bb
; X32-NEXT: jmp foo6 # TAILCALL
; X32-NEXT: .LBB12_1: # %bb2
; X32-NEXT: xorl %eax, %eax
; X32-NEXT: retq
entry:
%0 = icmp eq i32 %x, 0
br i1 %0, label %bb2, label %bb
bb:
%1 = tail call i32 @foo6(i32 %x, i32 %y, %struct.t* byval align 4 %z) nounwind
ret i32 %1
bb2:
ret i32 0
}
declare i32 @foo6(i32, i32, %struct.t* byval align 4)
; rdar://r7717598
%struct.ns = type { i32, i32 }
%struct.cp = type { float, float, float, float, float }
define %struct.ns* @t13(%struct.cp* %yy) nounwind ssp {
; X86-LABEL: t13:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $28, %esp
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl 16(%eax), %ecx
; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp)
; X86-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; X86-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
; X86-NEXT: movsd %xmm1, {{[0-9]+}}(%esp)
; X86-NEXT: movsd %xmm0, (%esp)
; X86-NEXT: xorl %ecx, %ecx
; X86-NEXT: calll foo7
; X86-NEXT: addl $28, %esp
; X86-NEXT: retl
;
; X64-LABEL: t13:
; X64: # %bb.0: # %entry
; X64-NEXT: pushq %rax
; X64-NEXT: subq $8, %rsp
; X64-NEXT: movl 16(%rdi), %eax
; X64-NEXT: movq (%rdi), %rcx
; X64-NEXT: movq 8(%rdi), %rdx
; X64-NEXT: xorl %edi, %edi
; X64-NEXT: pushq %rax
; X64-NEXT: pushq %rdx
; X64-NEXT: pushq %rcx
; X64-NEXT: callq foo7
; X64-NEXT: addq $32, %rsp
; X64-NEXT: popq %rcx
; X64-NEXT: retq
;
; X32-LABEL: t13:
; X32: # %bb.0: # %entry
; X32-NEXT: pushq %rax
; X32-NEXT: subl $8, %esp
; X32-NEXT: movl 16(%edi), %eax
; X32-NEXT: movq (%edi), %rcx
; X32-NEXT: movq 8(%edi), %rdx
; X32-NEXT: xorl %edi, %edi
; X32-NEXT: pushq %rax
; X32-NEXT: pushq %rdx
; X32-NEXT: pushq %rcx
; X32-NEXT: callq foo7
; X32-NEXT: addl $32, %esp
; X32-NEXT: popq %rcx
; X32-NEXT: retq
entry:
%0 = tail call fastcc %struct.ns* @foo7(%struct.cp* byval align 4 %yy, i8 signext 0) nounwind
ret %struct.ns* %0
}
; rdar://6195379
; llvm can't do sibcall for this in 32-bit mode (yet).
declare fastcc %struct.ns* @foo7(%struct.cp* byval align 4, i8 signext) nounwind ssp
%struct.__block_descriptor = type { i64, i64 }
%struct.__block_descriptor_withcopydispose = type { i64, i64, i8*, i8* }
%struct.__block_literal_1 = type { i8*, i32, i32, i8*, %struct.__block_descriptor* }
%struct.__block_literal_2 = type { i8*, i32, i32, i8*, %struct.__block_descriptor_withcopydispose*, void ()* }
define void @t14(%struct.__block_literal_2* nocapture %.block_descriptor) nounwind ssp {
; X86-LABEL: t14:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl 20(%eax), %eax
; X86-NEXT: movl %eax, (%esp)
; X86-NEXT: calll *12(%eax)
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: t14:
; X64: # %bb.0: # %entry
; X64-NEXT: movq 32(%rdi), %rdi
; X64-NEXT: jmpq *16(%rdi) # TAILCALL
;
; X32-LABEL: t14:
; X32: # %bb.0: # %entry
; X32-NEXT: movl 20(%edi), %edi
; X32-NEXT: movl 12(%edi), %eax
; X32-NEXT: jmpq *%rax # TAILCALL
entry:
%0 = getelementptr inbounds %struct.__block_literal_2, %struct.__block_literal_2* %.block_descriptor, i64 0, i32 5 ; <void ()**> [#uses=1]
%1 = load void ()*, void ()** %0, align 8 ; <void ()*> [#uses=2]
%2 = bitcast void ()* %1 to %struct.__block_literal_1* ; <%struct.__block_literal_1*> [#uses=1]
%3 = getelementptr inbounds %struct.__block_literal_1, %struct.__block_literal_1* %2, i64 0, i32 3 ; <i8**> [#uses=1]
%4 = load i8*, i8** %3, align 8 ; <i8*> [#uses=1]
%5 = bitcast i8* %4 to void (i8*)* ; <void (i8*)*> [#uses=1]
%6 = bitcast void ()* %1 to i8* ; <i8*> [#uses=1]
tail call void %5(i8* %6) nounwind
ret void
}
; rdar://7726868
%struct.foo = type { [4 x i32] }
define void @t15(%struct.foo* noalias sret %agg.result) nounwind {
; X86-LABEL: t15:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl %esi, %ecx
; X86-NEXT: calll f
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl $4
;
; X64-LABEL: t15:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: callq f
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t15:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: callq f
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @f(%struct.foo* noalias sret %agg.result) nounwind
ret void
}
declare void @f(%struct.foo* noalias sret) nounwind
define void @t16() nounwind ssp {
; X86-LABEL: t16:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: calll bar4
; X86-NEXT: fstp %st(0)
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: t16:
; X64: # %bb.0: # %entry
; X64-NEXT: jmp bar4 # TAILCALL
;
; X32-LABEL: t16:
; X32: # %bb.0: # %entry
; X32-NEXT: jmp bar4 # TAILCALL
entry:
%0 = tail call double @bar4() nounwind
ret void
}
declare double @bar4()
; rdar://6283267
define void @t17() nounwind ssp {
; X86-LABEL: t17:
; X86: # %bb.0: # %entry
; X86-NEXT: jmp bar5 # TAILCALL
;
; X64-LABEL: t17:
; X64: # %bb.0: # %entry
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: jmp bar5 # TAILCALL
;
; X32-LABEL: t17:
; X32: # %bb.0: # %entry
; X32-NEXT: xorl %eax, %eax
; X32-NEXT: jmp bar5 # TAILCALL
entry:
tail call void (...) @bar5() nounwind
ret void
}
declare void @bar5(...)
; rdar://7774847
define void @t18() nounwind ssp {
; X86-LABEL: t18:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: calll bar6
; X86-NEXT: fstp %st(0)
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: t18:
; X64: # %bb.0: # %entry
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: jmp bar6 # TAILCALL
;
; X32-LABEL: t18:
; X32: # %bb.0: # %entry
; X32-NEXT: xorl %eax, %eax
; X32-NEXT: jmp bar6 # TAILCALL
entry:
%0 = tail call double (...) @bar6() nounwind
ret void
}
declare double @bar6(...)
define void @t19() alignstack(32) nounwind {
; X86-LABEL: t19:
; X86: # %bb.0: # %entry
; X86-NEXT: pushl %ebp
; X86-NEXT: movl %esp, %ebp
; X86-NEXT: andl $-32, %esp
; X86-NEXT: subl $32, %esp
; X86-NEXT: calll foo
; X86-NEXT: movl %ebp, %esp
; X86-NEXT: popl %ebp
; X86-NEXT: retl
;
; X64-LABEL: t19:
; X64: # %bb.0: # %entry
; X64-NEXT: pushq %rbp
; X64-NEXT: movq %rsp, %rbp
; X64-NEXT: andq $-32, %rsp
; X64-NEXT: subq $32, %rsp
; X64-NEXT: callq foo
; X64-NEXT: movq %rbp, %rsp
; X64-NEXT: popq %rbp
; X64-NEXT: retq
;
; X32-LABEL: t19:
; X32: # %bb.0: # %entry
; X32-NEXT: pushq %rbp
; X32-NEXT: movl %esp, %ebp
; X32-NEXT: andl $-32, %esp
; X32-NEXT: subl $32, %esp
; X32-NEXT: callq foo
; X32-NEXT: movl %ebp, %esp
; X32-NEXT: popq %rbp
; X32-NEXT: retq
entry:
tail call void @foo() nounwind
ret void
}
; If caller / callee calling convention mismatch then check if the return
; values are returned in the same registers.
; rdar://7874780
define double @t20(double %x) nounwind {
; X86-LABEL: t20:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; X86-NEXT: calll foo20
; X86-NEXT: movsd %xmm0, (%esp)
; X86-NEXT: fldl (%esp)
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: t20:
; X64: # %bb.0: # %entry
; X64-NEXT: jmp foo20 # TAILCALL
;
; X32-LABEL: t20:
; X32: # %bb.0: # %entry
; X32-NEXT: jmp foo20 # TAILCALL
entry:
%0 = tail call fastcc double @foo20(double %x) nounwind
ret double %0
}
declare fastcc double @foo20(double) nounwind
; bug 28417
define fastcc void @t21_sret_to_sret(%struct.foo* noalias sret %agg.result) nounwind {
; X86-LABEL: t21_sret_to_sret:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: calll t21_f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: callq t21_f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: callq t21_f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %agg.result) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_alloca(%struct.foo* noalias sret %agg.result) nounwind {
; X86-LABEL: t21_sret_to_sret_alloca:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $24, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: leal {{[0-9]+}}(%esp), %ecx
; X86-NEXT: calll t21_f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $24, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_alloca:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: subq $16, %rsp
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: movq %rsp, %rdi
; X64-NEXT: callq t21_f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: addq $16, %rsp
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_alloca:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: subl $16, %esp
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: movl %esp, %edi
; X32-NEXT: callq t21_f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: addl $16, %esp
; X32-NEXT: popq %rbx
; X32-NEXT: retq
%a = alloca %struct.foo, align 8
tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %a) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_more_args(%struct.foo* noalias sret %agg.result, i32 %a, i32 %b) nounwind {
; X86-LABEL: t21_sret_to_sret_more_args:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl %eax, (%esp)
; X86-NEXT: calll f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_more_args:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: callq f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_more_args:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: callq f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @f_sret(%struct.foo* noalias sret %agg.result, i32 %a, i32 %b) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_second_arg_sret(%struct.foo* noalias %agg.result, %struct.foo* noalias sret %ret) nounwind {
; X86-LABEL: t21_sret_to_sret_second_arg_sret:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %edx, %esi
; X86-NEXT: movl %edx, %ecx
; X86-NEXT: calll t21_f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_second_arg_sret:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rsi, %rbx
; X64-NEXT: movq %rsi, %rdi
; X64-NEXT: callq t21_f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_second_arg_sret:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %esi, %ebx
; X32-NEXT: movl %esi, %edi
; X32-NEXT: callq t21_f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %ret) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_more_args2(%struct.foo* noalias sret %agg.result, i32 %a, i32 %b) nounwind {
; X86-LABEL: t21_sret_to_sret_more_args2:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl %edx, (%esp)
; X86-NEXT: movl %eax, %edx
; X86-NEXT: calll f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_more_args2:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movl %esi, %eax
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: movl %edx, %esi
; X64-NEXT: movl %eax, %edx
; X64-NEXT: callq f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_more_args2:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %esi, %eax
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: movl %edx, %esi
; X32-NEXT: movl %eax, %edx
; X32-NEXT: callq f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @f_sret(%struct.foo* noalias sret %agg.result, i32 %b, i32 %a) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_args_mismatch(%struct.foo* noalias sret %agg.result, %struct.foo* noalias %ret) nounwind {
; X86-LABEL: t21_sret_to_sret_args_mismatch:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: movl %edx, %ecx
; X86-NEXT: calll t21_f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_args_mismatch:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: movq %rsi, %rdi
; X64-NEXT: callq t21_f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_args_mismatch:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: movl %esi, %edi
; X32-NEXT: callq t21_f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %ret) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_args_mismatch2(%struct.foo* noalias sret %agg.result, %struct.foo* noalias %ret) nounwind {
; X86-LABEL: t21_sret_to_sret_args_mismatch2:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: movl %edx, %ecx
; X86-NEXT: calll t21_f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_args_mismatch2:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: movq %rsi, %rdi
; X64-NEXT: callq t21_f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_args_mismatch2:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: movl %esi, %edi
; X32-NEXT: callq t21_f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %ret) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_arg_mismatch(%struct.foo* noalias sret %agg.result) nounwind {
; X86-LABEL: t21_sret_to_sret_arg_mismatch:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: calll ret_struct
; X86-NEXT: movl %eax, %ecx
; X86-NEXT: calll t21_f_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_arg_mismatch:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: callq ret_struct
; X64-NEXT: movq %rax, %rdi
; X64-NEXT: callq t21_f_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_arg_mismatch:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: callq ret_struct
; X32-NEXT: movl %eax, %edi
; X32-NEXT: callq t21_f_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
%a = call fastcc %struct.foo* @ret_struct()
tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %a) nounwind
ret void
}
define fastcc void @t21_sret_to_sret_structs_mismatch(%struct.foo* noalias sret %agg.result, %struct.foo* noalias %a) nounwind {
; X86-LABEL: t21_sret_to_sret_structs_mismatch:
; X86: # %bb.0:
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: pushl %eax
; X86-NEXT: movl %edx, %esi
; X86-NEXT: movl %ecx, %edi
; X86-NEXT: calll ret_struct
; X86-NEXT: movl %esi, %ecx
; X86-NEXT: movl %eax, %edx
; X86-NEXT: calll t21_f_sret2
; X86-NEXT: movl %edi, %eax
; X86-NEXT: addl $4, %esp
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_sret_structs_mismatch:
; X64: # %bb.0:
; X64-NEXT: pushq %r14
; X64-NEXT: pushq %rbx
; X64-NEXT: pushq %rax
; X64-NEXT: movq %rsi, %rbx
; X64-NEXT: movq %rdi, %r14
; X64-NEXT: callq ret_struct
; X64-NEXT: movq %rbx, %rdi
; X64-NEXT: movq %rax, %rsi
; X64-NEXT: callq t21_f_sret2
; X64-NEXT: movq %r14, %rax
; X64-NEXT: addq $8, %rsp
; X64-NEXT: popq %rbx
; X64-NEXT: popq %r14
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_sret_structs_mismatch:
; X32: # %bb.0:
; X32-NEXT: pushq %rbp
; X32-NEXT: pushq %rbx
; X32-NEXT: pushq %rax
; X32-NEXT: movl %esi, %ebx
; X32-NEXT: movl %edi, %ebp
; X32-NEXT: callq ret_struct
; X32-NEXT: movl %ebx, %edi
; X32-NEXT: movl %eax, %esi
; X32-NEXT: callq t21_f_sret2
; X32-NEXT: movl %ebp, %eax
; X32-NEXT: addl $8, %esp
; X32-NEXT: popq %rbx
; X32-NEXT: popq %rbp
; X32-NEXT: retq
%b = call fastcc %struct.foo* @ret_struct()
tail call fastcc void @t21_f_sret2(%struct.foo* noalias sret %a, %struct.foo* noalias %b) nounwind
ret void
}
declare ccc %struct.foo* @ret_struct() nounwind
define fastcc void @t21_sret_to_non_sret(%struct.foo* noalias sret %agg.result) nounwind {
; X86-LABEL: t21_sret_to_non_sret:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: subl $8, %esp
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: calll t21_f_non_sret
; X86-NEXT: movl %esi, %eax
; X86-NEXT: addl $8, %esp
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: t21_sret_to_non_sret:
; X64: # %bb.0:
; X64-NEXT: pushq %rbx
; X64-NEXT: movq %rdi, %rbx
; X64-NEXT: callq t21_f_non_sret
; X64-NEXT: movq %rbx, %rax
; X64-NEXT: popq %rbx
; X64-NEXT: retq
;
; X32-LABEL: t21_sret_to_non_sret:
; X32: # %bb.0:
; X32-NEXT: pushq %rbx
; X32-NEXT: movl %edi, %ebx
; X32-NEXT: callq t21_f_non_sret
; X32-NEXT: movl %ebx, %eax
; X32-NEXT: popq %rbx
; X32-NEXT: retq
tail call fastcc void @t21_f_non_sret(%struct.foo* %agg.result) nounwind
ret void
}
define ccc void @t22_non_sret_to_sret(%struct.foo* %agg.result) nounwind {
; X86-LABEL: t22_non_sret_to_sret:
; X86: # %bb.0:
; X86-NEXT: subl $12, %esp
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl %eax, (%esp)
; X86-NEXT: calll t22_f_sret
; X86-NEXT: addl $8, %esp
; X86-NEXT: retl
;
; X64-LABEL: t22_non_sret_to_sret:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: callq t22_f_sret
; X64-NEXT: popq %rax
; X64-NEXT: retq
;
; X32-LABEL: t22_non_sret_to_sret:
; X32: # %bb.0:
; X32-NEXT: pushq %rax
; X32-NEXT: callq t22_f_sret
; X32-NEXT: popq %rax
; X32-NEXT: retq
tail call ccc void @t22_f_sret(%struct.foo* noalias sret %agg.result) nounwind
ret void
}
declare fastcc void @t21_f_sret(%struct.foo* noalias sret) nounwind
declare fastcc void @t21_f_sret2(%struct.foo* noalias sret, %struct.foo* noalias) nounwind
declare fastcc void @t21_f_non_sret(%struct.foo*) nounwind
declare ccc void @t22_f_sret(%struct.foo* noalias sret) nounwind
declare ccc void @f_sret(%struct.foo* noalias sret, i32, i32) nounwind
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