; some setups (e.g., Atom) from affecting the output.
; RUN: llc < %s -mcpu=core2 -mtriple=i686-pc-win32 | FileCheck %s -check-prefix=WIN32
; RUN: llc < %s -mcpu=core2 -mtriple=i686-pc-mingw32 | FileCheck %s -check-prefix=MINGW_X86
+; RUN: llc < %s -mcpu=core2 -mtriple=i686-pc-cygwin | FileCheck %s -check-prefix=CYGWIN
; RUN: llc < %s -mcpu=core2 -mtriple=i386-pc-linux | FileCheck %s -check-prefix=LINUX
; RUN: llc < %s -mcpu=core2 -O0 -mtriple=i686-pc-win32 | FileCheck %s -check-prefix=WIN32
; RUN: llc < %s -mcpu=core2 -O0 -mtriple=i686-pc-mingw32 | FileCheck %s -check-prefix=MINGW_X86
+; RUN: llc < %s -mcpu=core2 -O0 -mtriple=i686-pc-cygwin | FileCheck %s -check-prefix=CYGWIN
; RUN: llc < %s -mcpu=core2 -O0 -mtriple=i386-pc-linux | FileCheck %s -check-prefix=LINUX
; The SysV ABI used by most Unixes and Mingw on x86 specifies that an sret pointer
; MINGW_X86-LABEL: _sret1:
; MINGW_X86: {{retl$}}
+; CYGWIN-LABEL: _sret1:
+; CYGWIN: retl $4
+
; LINUX-LABEL: sret1:
; LINUX: retl $4
; MINGW_X86-LABEL: _sret2:
; MINGW_X86: {{retl$}}
+; CYGWIN-LABEL: _sret2:
+; CYGWIN: retl $4
+
; LINUX-LABEL: sret2:
; LINUX: retl $4
; MINGW_X86-LABEL: _sret3:
; MINGW_X86: {{retl$}}
+; CYGWIN-LABEL: _sret3:
+; CYGWIN: retl $4
+
; LINUX-LABEL: sret3:
; LINUX: retl $4
; MINGW_X86-LABEL: _sret4:
; MINGW_X86: {{retl$}}
+; CYGWIN-LABEL: _sret4:
+; CYGWIN: retl $4
+
; LINUX-LABEL: sret4:
; LINUX: retl $4
- %x = getelementptr inbounds %struct.S4* %agg.result, i32 0, i32 0
+ %x = getelementptr inbounds %struct.S4, %struct.S4* %agg.result, i32 0, i32 0
store i32 42, i32* %x, align 4
ret void
}
entry:
%this.addr = alloca %class.C5*, align 4
store %class.C5* %this, %class.C5** %this.addr, align 4
- %this1 = load %class.C5** %this.addr
- %x = getelementptr inbounds %struct.S5* %agg.result, i32 0, i32 0
+ %this1 = load %class.C5*, %class.C5** %this.addr
+ %x = getelementptr inbounds %struct.S5, %struct.S5* %agg.result, i32 0, i32 0
store i32 42, i32* %x, align 4
ret void
; WIN32-LABEL: {{^}}"?foo@C5@@QAE?AUS5@@XZ":
; MINGW_X86-LABEL: {{^}}"?foo@C5@@QAE?AUS5@@XZ":
+; CYGWIN-LABEL: {{^}}"?foo@C5@@QAE?AUS5@@XZ":
; LINUX-LABEL: {{^}}"?foo@C5@@QAE?AUS5@@XZ":
; The address of the return structure is passed as an implicit parameter.
call x86_thiscallcc void @"\01?foo@C5@@QAE?AUS5@@XZ"(%struct.S5* sret %s, %class.C5* %c)
; WIN32-LABEL: {{^}}_call_foo5:
; MINGW_X86-LABEL: {{^}}_call_foo5:
+; CYGWIN-LABEL: {{^}}_call_foo5:
; LINUX-LABEL: {{^}}call_foo5:
define void @test6_f(%struct.test6* %x) nounwind {
; WIN32-LABEL: _test6_f:
; MINGW_X86-LABEL: _test6_f:
+; CYGWIN-LABEL: _test6_f:
; LINUX-LABEL: test6_f:
; The %x argument is moved to %ecx. It will be the this pointer.
-; WIN32: movl 8(%ebp), %ecx
+; WIN32: movl 20(%esp), %ecx
; The %x argument is moved to (%esp). It will be the this pointer. With -O0
; we copy esp to ecx and use (ecx) instead of (esp).
-; MINGW_X86: movl 8(%ebp), %eax
+; MINGW_X86: movl 20(%esp), %eax
; MINGW_X86: movl %eax, (%e{{([a-d]x)|(sp)}})
+; CYGWIN: movl 20(%esp), %eax
+; CYGWIN: movl %eax, (%e{{([a-d]x)|(sp)}})
+
; The sret pointer is (%esp)
-; WIN32: leal 8(%esp), %[[REG:e[a-d]x]]
+; WIN32: leal 4(%esp), %[[REG:e[a-d]x]]
; WIN32-NEXT: movl %[[REG]], (%e{{([a-d]x)|(sp)}})
; The sret pointer is %ecx
-; MINGW_X86-NEXT: leal 8(%esp), %ecx
+; MINGW_X86-NEXT: leal 4(%esp), %ecx
; MINGW_X86-NEXT: calll _test6_g
+; CYGWIN-NEXT: leal 4(%esp), %ecx
+; CYGWIN-NEXT: calll _test6_g
+
%tmp = alloca %struct.test6, align 4
call x86_thiscallcc void @test6_g(%struct.test6* sret %tmp, %struct.test6* %x)
ret void
}
declare x86_thiscallcc void @test6_g(%struct.test6* sret, %struct.test6*)
+
+; Flipping the parameters at the IR level generates the same code.
+%struct.test7 = type { i32, i32, i32 }
+define void @test7_f(%struct.test7* %x) nounwind {
+; WIN32-LABEL: _test7_f:
+; MINGW_X86-LABEL: _test7_f:
+; CYGWIN-LABEL: _test7_f:
+; LINUX-LABEL: test7_f:
+
+; The %x argument is moved to %ecx on all OSs. It will be the this pointer.
+; WIN32: movl 20(%esp), %ecx
+; MINGW_X86: movl 20(%esp), %ecx
+; CYGWIN: movl 20(%esp), %ecx
+
+; The sret pointer is (%esp)
+; WIN32: leal 4(%esp), %[[REG:e[a-d]x]]
+; WIN32-NEXT: movl %[[REG]], (%e{{([a-d]x)|(sp)}})
+; MINGW_X86: leal 4(%esp), %[[REG:e[a-d]x]]
+; MINGW_X86-NEXT: movl %[[REG]], (%e{{([a-d]x)|(sp)}})
+; CYGWIN: leal 4(%esp), %[[REG:e[a-d]x]]
+; CYGWIN-NEXT: movl %[[REG]], (%e{{([a-d]x)|(sp)}})
+
+ %tmp = alloca %struct.test7, align 4
+ call x86_thiscallcc void @test7_g(%struct.test7* %x, %struct.test7* sret %tmp)
+ ret void
+}
+
+define x86_thiscallcc void @test7_g(%struct.test7* %in, %struct.test7* sret %out) {
+ %s = getelementptr %struct.test7, %struct.test7* %in, i32 0, i32 0
+ %d = getelementptr %struct.test7, %struct.test7* %out, i32 0, i32 0
+ %v = load i32, i32* %s
+ store i32 %v, i32* %d
+ call void @clobber_eax()
+ ret void
+
+; Make sure we return the second parameter in %eax.
+; WIN32-LABEL: _test7_g:
+; WIN32: calll _clobber_eax
+; WIN32: movl {{.*}}, %eax
+; WIN32: retl
+}
+
+declare void @clobber_eax()
+
+; Test what happens if the first parameter has to be split by codegen.
+; Realistically, no frontend will generate code like this, but here it is for
+; completeness.
+define void @test8_f(i64 inreg %a, i64* sret %out) {
+ store i64 %a, i64* %out
+ call void @clobber_eax()
+ ret void
+
+; WIN32-LABEL: _test8_f:
+; WIN32: movl {{[0-9]+}}(%esp), %[[out:[a-z]+]]
+; WIN32-DAG: movl %edx, 4(%[[out]])
+; WIN32-DAG: movl %eax, (%[[out]])
+; WIN32: calll _clobber_eax
+; WIN32: movl {{.*}}, %eax
+; WIN32: retl
+}
projects / oota-llvm.git / blobdiff