90 lines
2.6 KiB
LLVM
90 lines
2.6 KiB
LLVM
; RUN: llc %s -o - | FileCheck %s
|
|
target triple = "thumbv7-apple-ios"
|
|
|
|
declare i32 @llvm.eh.sjlj.setjmp(i8*)
|
|
declare void @llvm.eh.sjlj.longjmp(i8*)
|
|
declare i8* @llvm.frameaddress(i32)
|
|
declare i8* @llvm.stacksave()
|
|
@g = external global i32
|
|
|
|
; CHECK-LABEL: double_foobar
|
|
;
|
|
; setjmp sequence:
|
|
; CHECK: mov [[PCREG:r[0-9]+]], pc
|
|
; CHECK-NEXT: adds [[PCREG]], [[PCREG]], #7
|
|
; CHECK-NEXT: str [[PCREG]], {{\[}}[[BUFREG:r[0-9]+]], #4]
|
|
; CHECK-NEXT: movs r0, #0
|
|
; CHECK-NEXT: b [[LABEL:L[a-zA-Z0-9]+]]
|
|
; CHECK-NEXT: movs r0, #1
|
|
; CHECK-NEXT: [[LABEL]]:
|
|
;
|
|
; setjmp sequence 2:
|
|
; CHECK: mov [[PCREG:r[0-9]+]], pc
|
|
; CHECK-NEXT: adds [[PCREG]], [[PCREG]], #7
|
|
; CHECK-NEXT: str [[PCREG]], {{\[}}[[BUFREG:r[0-9]+]], #4]
|
|
; CHECK-NEXT: movs r0, #0
|
|
; CHECK-NEXT: b [[LABEL:L[a-zA-Z0-9]+]]
|
|
; CHECK-NEXT: movs r0, #1
|
|
; CHECK-NEXT: [[LABEL]]:
|
|
|
|
; longjmp sequence:
|
|
; CHECK: ldr [[TEMPREG:r[0-9]+]], [{{\s*}}[[BUFREG:r[0-9]+]], #8]
|
|
; CHECK-NEXT: mov sp, [[TEMPREG]]
|
|
; CHECK-NEXT: ldr [[DESTREG:r[0-9]+]], {{\[}}[[BUFREG]], #4]
|
|
; CHECK-NEXT: ldr r7, {{\[}}[[BUFREG]]{{\]}}
|
|
; CHECK-NEXT: bx [[DESTREG]]
|
|
;
|
|
; longjmp sequence2:
|
|
; CHECK: ldr [[TEMPREG:r[0-9]+]], [{{\s*}}[[BUFREG:r[0-9]+]], #8]
|
|
; CHECK-NEXT: mov sp, [[TEMPREG]]
|
|
; CHECK-NEXT: ldr [[DESTREG:r[0-9]+]], {{\[}}[[BUFREG]], #4]
|
|
; CHECK-NEXT: ldr r7, {{\[}}[[BUFREG]]{{\]}}
|
|
; CHECK-NEXT: bx [[DESTREG]]
|
|
define void @double_foobar() {
|
|
entry:
|
|
%buf = alloca [5 x i8*], align 4
|
|
%bufptr = bitcast [5 x i8*]* %buf to i8*
|
|
%arraydecay = getelementptr inbounds [5 x i8*], [5 x i8*]* %buf, i32 0, i32 0
|
|
|
|
%fa = tail call i8* @llvm.frameaddress(i32 0)
|
|
store i8* %fa, i8** %arraydecay, align 4
|
|
%ss = tail call i8* @llvm.stacksave()
|
|
%ssgep = getelementptr [5 x i8*], [5 x i8*]* %buf, i32 0, i32 2
|
|
store i8* %ss, i8** %ssgep, align 4
|
|
|
|
%setjmpres = call i32 @llvm.eh.sjlj.setjmp(i8* %bufptr)
|
|
%tobool = icmp ne i32 %setjmpres, 0
|
|
br i1 %tobool, label %if.then, label %if.else
|
|
|
|
if.then:
|
|
store volatile i32 1, i32* @g, align 4
|
|
br label %if.end
|
|
|
|
if.else:
|
|
store volatile i32 0, i32* @g, align 4
|
|
call void @llvm.eh.sjlj.longjmp(i8* %bufptr)
|
|
unreachable
|
|
|
|
if.end:
|
|
%fa2 = tail call i8* @llvm.frameaddress(i32 0)
|
|
store i8* %fa2, i8** %arraydecay, align 4
|
|
%ss2 = tail call i8* @llvm.stacksave()
|
|
store i8* %ss2, i8** %ssgep, align 4
|
|
|
|
%setjmpres2 = call i32 @llvm.eh.sjlj.setjmp(i8* %bufptr)
|
|
%tobool2 = icmp ne i32 %setjmpres2, 0
|
|
br i1 %tobool2, label %if2.then, label %if2.else
|
|
|
|
if2.then:
|
|
store volatile i32 3, i32* @g, align 4
|
|
br label %if2.end
|
|
|
|
if2.else:
|
|
store volatile i32 2, i32* @g, align 4
|
|
call void @llvm.eh.sjlj.longjmp(i8* %bufptr)
|
|
unreachable
|
|
|
|
if2.end:
|
|
ret void
|
|
}
|