386 lines
12 KiB
LLVM
386 lines
12 KiB
LLVM
; RUN: llc -verify-machineinstrs -disable-fp-elim < %s -mtriple=aarch64-apple-ios -disable-post-ra | FileCheck --check-prefix=CHECK-APPLE %s
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; RUN: llc -verify-machineinstrs -disable-fp-elim -O0 < %s -mtriple=aarch64-apple-ios -disable-post-ra | FileCheck --check-prefix=CHECK-O0 %s
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declare i8* @malloc(i64)
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declare void @free(i8*)
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%swift_error = type {i64, i8}
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; This tests the basic usage of a swifterror parameter. "foo" is the function
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; that takes a swifterror parameter and "caller" is the caller of "foo".
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define float @foo(%swift_error** swifterror %error_ptr_ref) {
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; CHECK-APPLE-LABEL: foo:
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; CHECK-APPLE: orr w0, wzr, #0x10
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; CHECK-APPLE: malloc
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; CHECK-APPLE: orr [[ID:w[0-9]+]], wzr, #0x1
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; CHECK-APPLE: strb [[ID]], [x0, #8]
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; CHECK-APPLE: mov x19, x0
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; CHECK-APPLE-NOT: x19
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; CHECK-O0-LABEL: foo:
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; CHECK-O0: orr w{{.*}}, wzr, #0x10
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; CHECK-O0: malloc
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; CHECK-O0: mov [[ID2:x[0-9]+]], x0
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; CHECK-O0: orr [[ID:w[0-9]+]], wzr, #0x1
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; CHECK-O0: strb [[ID]], [x0, #8]
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; CHECK-O0: mov x19, [[ID2]]
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; CHECK-O0-NOT: x19
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entry:
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%call = call i8* @malloc(i64 16)
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%call.0 = bitcast i8* %call to %swift_error*
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store %swift_error* %call.0, %swift_error** %error_ptr_ref
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%tmp = getelementptr inbounds i8, i8* %call, i64 8
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store i8 1, i8* %tmp
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ret float 1.0
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}
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; "caller" calls "foo" that takes a swifterror parameter.
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define float @caller(i8* %error_ref) {
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; CHECK-APPLE-LABEL: caller:
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; CHECK-APPLE: mov [[ID:x[0-9]+]], x0
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; CHECK-APPLE: mov x19, xzr
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; CHECK-APPLE: bl {{.*}}foo
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; CHECK-APPLE: cbnz x19
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; Access part of the error object and save it to error_ref
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; CHECK-APPLE: ldrb [[CODE:w[0-9]+]], [x19, #8]
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; CHECK-APPLE: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK-APPLE: mov x0, x19
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; CHECK_APPLE: bl {{.*}}free
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; CHECK-O0-LABEL: caller:
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; CHECK-O0: mov x19
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; CHECK-O0: bl {{.*}}foo
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; CHECK-O0: mov [[ID:x[0-9]+]], x19
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; CHECK-O0: cbnz [[ID]]
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entry:
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%error_ptr_ref = alloca swifterror %swift_error*
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store %swift_error* null, %swift_error** %error_ptr_ref
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%call = call float @foo(%swift_error** swifterror %error_ptr_ref)
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%error_from_foo = load %swift_error*, %swift_error** %error_ptr_ref
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%had_error_from_foo = icmp ne %swift_error* %error_from_foo, null
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%tmp = bitcast %swift_error* %error_from_foo to i8*
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br i1 %had_error_from_foo, label %handler, label %cont
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cont:
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%v1 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo, i64 0, i32 1
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%t = load i8, i8* %v1
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store i8 %t, i8* %error_ref
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br label %handler
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handler:
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call void @free(i8* %tmp)
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ret float 1.0
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}
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; "caller2" is the caller of "foo", it calls "foo" inside a loop.
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define float @caller2(i8* %error_ref) {
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; CHECK-APPLE-LABEL: caller2:
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; CHECK-APPLE: mov [[ID:x[0-9]+]], x0
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; CHECK-APPLE: fmov [[CMP:s[0-9]+]], #1.0
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; CHECK-APPLE: mov x19, xzr
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; CHECK-APPLE: bl {{.*}}foo
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; CHECK-APPLE: cbnz x19
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; CHECK-APPLE: fcmp s0, [[CMP]]
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; CHECK-APPLE: b.le
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; Access part of the error object and save it to error_ref
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; CHECK-APPLE: ldrb [[CODE:w[0-9]+]], [x19, #8]
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; CHECK-APPLE: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK-APPLE: mov x0, x19
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; CHECK_APPLE: bl {{.*}}free
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; CHECK-O0-LABEL: caller2:
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; CHECK-O0: mov x19
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; CHECK-O0: bl {{.*}}foo
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; CHECK-O0: mov [[ID:x[0-9]+]], x19
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; CHECK-O0: cbnz [[ID]]
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entry:
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%error_ptr_ref = alloca swifterror %swift_error*
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br label %bb_loop
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bb_loop:
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store %swift_error* null, %swift_error** %error_ptr_ref
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%call = call float @foo(%swift_error** swifterror %error_ptr_ref)
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%error_from_foo = load %swift_error*, %swift_error** %error_ptr_ref
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%had_error_from_foo = icmp ne %swift_error* %error_from_foo, null
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%tmp = bitcast %swift_error* %error_from_foo to i8*
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br i1 %had_error_from_foo, label %handler, label %cont
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cont:
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%cmp = fcmp ogt float %call, 1.000000e+00
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br i1 %cmp, label %bb_end, label %bb_loop
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bb_end:
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%v1 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo, i64 0, i32 1
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%t = load i8, i8* %v1
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store i8 %t, i8* %error_ref
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br label %handler
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handler:
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call void @free(i8* %tmp)
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ret float 1.0
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}
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; "foo_if" is a function that takes a swifterror parameter, it sets swifterror
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; under a certain condition.
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define float @foo_if(%swift_error** swifterror %error_ptr_ref, i32 %cc) {
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; CHECK-APPLE-LABEL: foo_if:
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; CHECK-APPLE: cbz w0
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; CHECK-APPLE: orr w0, wzr, #0x10
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; CHECK-APPLE: malloc
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; CHECK-APPLE: orr [[ID:w[0-9]+]], wzr, #0x1
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; CHECK-APPLE: strb [[ID]], [x0, #8]
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; CHECK-APPLE: mov x19, x0
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; CHECK-APPLE-NOT: x19
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; CHECK-APPLE: ret
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; CHECK-O0-LABEL: foo_if:
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; spill x19
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; CHECK-O0: str x19
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; CHECK-O0: cbz w0
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; CHECK-O0: orr w{{.*}}, wzr, #0x10
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; CHECK-O0: malloc
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; CHECK-O0: mov [[ID:x[0-9]+]], x0
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; CHECK-O0: orr [[ID2:w[0-9]+]], wzr, #0x1
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; CHECK-O0: strb [[ID2]], [x0, #8]
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; CHECK-O0: mov x19, [[ID]]
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; CHECK-O0: ret
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; reload from stack
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; CHECK-O0: ldr x19
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; CHECK-O0: ret
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entry:
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%cond = icmp ne i32 %cc, 0
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br i1 %cond, label %gen_error, label %normal
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gen_error:
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%call = call i8* @malloc(i64 16)
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%call.0 = bitcast i8* %call to %swift_error*
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store %swift_error* %call.0, %swift_error** %error_ptr_ref
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%tmp = getelementptr inbounds i8, i8* %call, i64 8
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store i8 1, i8* %tmp
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ret float 1.0
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normal:
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ret float 0.0
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}
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; "foo_loop" is a function that takes a swifterror parameter, it sets swifterror
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; under a certain condition inside a loop.
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define float @foo_loop(%swift_error** swifterror %error_ptr_ref, i32 %cc, float %cc2) {
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; CHECK-APPLE-LABEL: foo_loop:
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; CHECK-APPLE: mov x0, x19
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; CHECK-APPLE: cbz
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; CHECK-APPLE: orr w0, wzr, #0x10
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; CHECK-APPLE: malloc
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; CHECK-APPLE: strb w{{.*}}, [x0, #8]
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; CHECK-APPLE: fcmp
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; CHECK-APPLE: b.le
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; CHECK-APPLE: mov x19, x0
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; CHECK-APPLE: ret
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; CHECK-O0-LABEL: foo_loop:
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; spill x19
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; CHECK-O0: str x19
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; CHECk-O0: cbz
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; CHECK-O0: orr w{{.*}}, wzr, #0x10
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; CHECK-O0: malloc
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; CHECK-O0: mov [[ID:x[0-9]+]], x0
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; CHECK-O0: strb w{{.*}}, [{{.*}}[[ID]], #8]
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; spill x0
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; CHECK-O0: str x0
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; CHECK-O0: fcmp
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; CHECK-O0: b.le
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; reload from stack
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; CHECK-O0: ldr x19
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; CHECK-O0: ret
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entry:
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br label %bb_loop
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bb_loop:
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%cond = icmp ne i32 %cc, 0
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br i1 %cond, label %gen_error, label %bb_cont
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gen_error:
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%call = call i8* @malloc(i64 16)
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%call.0 = bitcast i8* %call to %swift_error*
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store %swift_error* %call.0, %swift_error** %error_ptr_ref
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%tmp = getelementptr inbounds i8, i8* %call, i64 8
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store i8 1, i8* %tmp
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br label %bb_cont
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bb_cont:
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%cmp = fcmp ogt float %cc2, 1.000000e+00
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br i1 %cmp, label %bb_end, label %bb_loop
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bb_end:
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ret float 0.0
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}
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%struct.S = type { i32, i32, i32, i32, i32, i32 }
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; "foo_sret" is a function that takes a swifterror parameter, it also has a sret
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; parameter.
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define void @foo_sret(%struct.S* sret %agg.result, i32 %val1, %swift_error** swifterror %error_ptr_ref) {
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; CHECK-APPLE-LABEL: foo_sret:
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; CHECK-APPLE: mov [[SRET:x[0-9]+]], x8
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; CHECK-APPLE: orr w0, wzr, #0x10
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; CHECK-APPLE: malloc
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; CHECK-APPLE: orr [[ID:w[0-9]+]], wzr, #0x1
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; CHECK-APPLE: strb [[ID]], [x0, #8]
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; CHECK-APPLE: str w{{.*}}, [{{.*}}[[SRET]], #4]
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; CHECK-APPLE: mov x19, x0
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; CHECK-APPLE-NOT: x19
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; CHECK-O0-LABEL: foo_sret:
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; CHECK-O0: orr w{{.*}}, wzr, #0x10
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; spill x8
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; CHECK-O0-DAG: str x8
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; spill x19
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; CHECK-O0-DAG: str x19
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; CHECK-O0: malloc
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; CHECK-O0: orr [[ID:w[0-9]+]], wzr, #0x1
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; CHECK-O0: strb [[ID]], [x0, #8]
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; reload from stack
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; CHECK-O0: ldr [[SRET:x[0-9]+]]
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; CHECK-O0: str w{{.*}}, [{{.*}}[[SRET]], #4]
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; CHECK-O0: mov x19
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; CHECK-O0-NOT: x19
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entry:
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%call = call i8* @malloc(i64 16)
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%call.0 = bitcast i8* %call to %swift_error*
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store %swift_error* %call.0, %swift_error** %error_ptr_ref
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%tmp = getelementptr inbounds i8, i8* %call, i64 8
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store i8 1, i8* %tmp
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%v2 = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 1
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store i32 %val1, i32* %v2
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ret void
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}
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; "caller3" calls "foo_sret" that takes a swifterror parameter.
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define float @caller3(i8* %error_ref) {
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; CHECK-APPLE-LABEL: caller3:
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; CHECK-APPLE: mov [[ID:x[0-9]+]], x0
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; CHECK-APPLE: mov x19, xzr
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; CHECK-APPLE: bl {{.*}}foo_sret
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; CHECK-APPLE: cbnz x19
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; Access part of the error object and save it to error_ref
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; CHECK-APPLE: ldrb [[CODE:w[0-9]+]], [x19, #8]
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; CHECK-APPLE: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK-APPLE: mov x0, x19
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; CHECK_APPLE: bl {{.*}}free
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; CHECK-O0-LABEL: caller3:
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; spill x0
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; CHECK-O0: str x0
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; CHECK-O0: mov x19
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; CHECK-O0: bl {{.*}}foo_sret
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; CHECK-O0: mov [[ID2:x[0-9]+]], x19
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; CHECK-O0: cbnz [[ID2]]
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; Access part of the error object and save it to error_ref
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; reload from stack
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; CHECK-O0: ldrb [[CODE:w[0-9]+]]
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; CHECK-O0: ldr [[ID:x[0-9]+]]
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; CHECK-O0: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK_O0: bl {{.*}}free
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entry:
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%s = alloca %struct.S, align 8
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%error_ptr_ref = alloca swifterror %swift_error*
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store %swift_error* null, %swift_error** %error_ptr_ref
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call void @foo_sret(%struct.S* sret %s, i32 1, %swift_error** swifterror %error_ptr_ref)
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%error_from_foo = load %swift_error*, %swift_error** %error_ptr_ref
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%had_error_from_foo = icmp ne %swift_error* %error_from_foo, null
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%tmp = bitcast %swift_error* %error_from_foo to i8*
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br i1 %had_error_from_foo, label %handler, label %cont
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cont:
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%v1 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo, i64 0, i32 1
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%t = load i8, i8* %v1
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store i8 %t, i8* %error_ref
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br label %handler
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handler:
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call void @free(i8* %tmp)
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ret float 1.0
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}
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; "foo_vararg" is a function that takes a swifterror parameter, it also has
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; variable number of arguments.
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declare void @llvm.va_start(i8*) nounwind
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define float @foo_vararg(%swift_error** swifterror %error_ptr_ref, ...) {
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; CHECK-APPLE-LABEL: foo_vararg:
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; CHECK-APPLE: orr w0, wzr, #0x10
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; CHECK-APPLE: malloc
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; CHECK-APPLE: orr [[ID:w[0-9]+]], wzr, #0x1
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; CHECK-APPLE: add [[ARGS:x[0-9]+]], [[TMP:x[0-9]+]], #16
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; CHECK-APPLE: strb [[ID]], [x0, #8]
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; First vararg
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; CHECK-APPLE-DAG: orr {{x[0-9]+}}, [[ARGS]], #0x8
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; CHECK-APPLE-DAG: ldr {{w[0-9]+}}, [{{.*}}[[TMP]], #16]
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; CHECK-APPLE: add {{x[0-9]+}}, {{x[0-9]+}}, #8
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; Second vararg
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; CHECK-APPLE: ldr {{w[0-9]+}}, [{{x[0-9]+}}]
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; CHECK-APPLE: add {{x[0-9]+}}, {{x[0-9]+}}, #8
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; Third vararg
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; CHECK-APPLE: ldr {{w[0-9]+}}, [{{x[0-9]+}}]
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; CHECK-APPLE: mov x19, x0
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; CHECK-APPLE-NOT: x19
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entry:
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%call = call i8* @malloc(i64 16)
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%call.0 = bitcast i8* %call to %swift_error*
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store %swift_error* %call.0, %swift_error** %error_ptr_ref
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%tmp = getelementptr inbounds i8, i8* %call, i64 8
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store i8 1, i8* %tmp
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%args = alloca i8*, align 8
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%a10 = alloca i32, align 4
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%a11 = alloca i32, align 4
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%a12 = alloca i32, align 4
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%v10 = bitcast i8** %args to i8*
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call void @llvm.va_start(i8* %v10)
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%v11 = va_arg i8** %args, i32
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store i32 %v11, i32* %a10, align 4
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%v12 = va_arg i8** %args, i32
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store i32 %v12, i32* %a11, align 4
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%v13 = va_arg i8** %args, i32
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store i32 %v13, i32* %a12, align 4
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ret float 1.0
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}
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; "caller4" calls "foo_vararg" that takes a swifterror parameter.
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define float @caller4(i8* %error_ref) {
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; CHECK-APPLE-LABEL: caller4:
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; CHECK-APPLE: mov [[ID:x[0-9]+]], x0
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; CHECK-APPLE: stp {{x[0-9]+}}, {{x[0-9]+}}, [sp, #8]
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; CHECK-APPLE: str {{x[0-9]+}}, [sp]
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; CHECK-APPLE: mov x19, xzr
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; CHECK-APPLE: bl {{.*}}foo_vararg
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; CHECK-APPLE: cbnz x19
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; Access part of the error object and save it to error_ref
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; CHECK-APPLE: ldrb [[CODE:w[0-9]+]], [x19, #8]
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; CHECK-APPLE: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK-APPLE: mov x0, x19
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; CHECK_APPLE: bl {{.*}}free
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entry:
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%error_ptr_ref = alloca swifterror %swift_error*
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store %swift_error* null, %swift_error** %error_ptr_ref
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%a10 = alloca i32, align 4
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%a11 = alloca i32, align 4
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%a12 = alloca i32, align 4
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store i32 10, i32* %a10, align 4
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store i32 11, i32* %a11, align 4
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store i32 12, i32* %a12, align 4
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%v10 = load i32, i32* %a10, align 4
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%v11 = load i32, i32* %a11, align 4
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%v12 = load i32, i32* %a12, align 4
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%call = call float (%swift_error**, ...) @foo_vararg(%swift_error** swifterror %error_ptr_ref, i32 %v10, i32 %v11, i32 %v12)
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%error_from_foo = load %swift_error*, %swift_error** %error_ptr_ref
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%had_error_from_foo = icmp ne %swift_error* %error_from_foo, null
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%tmp = bitcast %swift_error* %error_from_foo to i8*
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br i1 %had_error_from_foo, label %handler, label %cont
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cont:
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%v1 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo, i64 0, i32 1
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%t = load i8, i8* %v1
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store i8 %t, i8* %error_ref
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br label %handler
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handler:
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call void @free(i8* %tmp)
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ret float 1.0
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}
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