578 lines
19 KiB
LLVM
578 lines
19 KiB
LLVM
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; RUN: llc -verify-machineinstrs -frame-pointer=all -global-isel < %s -mtriple=aarch64-apple-ios -disable-post-ra | FileCheck %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-LABEL: foo:
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; CHECK: mov w0, #16
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; CHECK: malloc
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; CHECK: mov [[ID:w[0-9]+]], #1
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; CHECK: strb [[ID]], [x0, #8]
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; CHECK: mov x21, x0
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; CHECK-NOT: x21
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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-LABEL: caller:
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; CHECK: mov [[ID:x[0-9]+]], x0
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; CHECK: bl {{.*}}foo
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; CHECK: mov x0, x21
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; CHECK: cbnz x21
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; Access part of the error object and save it to error_ref
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; CHECK: ldrb [[CODE:w[0-9]+]], [x0, #8]
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; CHECK: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK: 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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%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-LABEL: caller2:
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; CHECK: mov [[ID:x[0-9]+]], x0
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; CHECK: fmov [[CMP:s[0-9]+]], #1.0
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; CHECK: mov x21, xzr
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; CHECK: bl {{.*}}foo
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; CHECK: cbnz x21
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; CHECK: fcmp s0, [[CMP]]
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; CHECK: b.le
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; Access part of the error object and save it to error_ref
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; CHECK: ldrb [[CODE:w[0-9]+]], [x21, #8]
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; CHECK: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK: mov x0, x21
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; CHECK: bl {{.*}}free
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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-LABEL: foo_if:
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; CHECK: cbz w0
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; CHECK: mov w0, #16
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; CHECK: malloc
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; CHECK: mov [[ID:w[0-9]+]], #1
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; CHECK: strb [[ID]], [x0, #8]
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; CHECK: mov x21, x0
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; CHECK-NOT: x21
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; CHECK: 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-LABEL: foo_loop:
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; CHECK: cbz
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; CHECK: mov w0, #16
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; CHECK: malloc
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; CHECK: mov x21, x0
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; CHECK: strb w{{.*}}, [x0, #8]
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; CHECK: 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(%struct.S) %agg.result, i32 %val1, %swift_error** swifterror %error_ptr_ref) {
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; CHECK-LABEL: foo_sret:
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; CHECK: mov [[SRET:x[0-9]+]], x8
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; CHECK: mov w0, #16
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; CHECK: malloc
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; CHECK: mov [[ID:w[0-9]+]], #1
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; CHECK: strb [[ID]], [x0, #8]
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; CHECK: str w{{.*}}, [{{.*}}[[SRET]], #4]
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; CHECK: mov x21, x0
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; CHECK-NOT: x21
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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-LABEL: caller3:
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; CHECK: mov [[ID:x[0-9]+]], x0
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; CHECK: mov [[ZERO:x[0-9]+]], xzr
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; CHECK: bl {{.*}}foo_sret
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; CHECK: mov x0, x21
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; CHECK: cbnz x21
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; Access part of the error object and save it to error_ref
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; CHECK: ldrb [[CODE:w[0-9]+]], [x0, #8]
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; CHECK: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK: 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(%struct.S) %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-LABEL: foo_vararg:
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; CHECK: mov w0, #16
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; CHECK: malloc
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; CHECK-DAG: mov [[ID:w[0-9]+]], #1
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; CHECK-DAG: strb [[ID]], [x0, #8]
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; First vararg
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; CHECK: ldr {{w[0-9]+}}, [x[[ARG1:[0-9]+]]], #8
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; Second vararg
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; CHECK: ldr {{w[0-9]+}}, [x[[ARG1]]], #8
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; Third vararg
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; CHECK: ldr {{w[0-9]+}}, [x[[ARG1]]], #8
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; CHECK: mov x21, x0
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; CHECK-NOT: x21
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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-LABEL: caller4:
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; CHECK: mov [[ID:x[0-9]+]], x0
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; CHECK: stp {{x[0-9]+}}, {{x[0-9]+}}, [sp]
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; CHECK: str {{x[0-9]+}}, [sp, #16]
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; CHECK: mov x21, xzr
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; CHECK: bl {{.*}}foo_vararg
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; CHECK: mov x0, x21
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; CHECK: cbnz x21
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; Access part of the error object and save it to error_ref
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; CHECK: ldrb [[CODE:w[0-9]+]], [x0, #8]
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; CHECK: strb [[CODE]], [{{.*}}[[ID]]]
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; CHECK: 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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; Check that we don't blow up on tail calling swifterror argument functions.
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define float @tailcallswifterror(%swift_error** swifterror %error_ptr_ref) {
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entry:
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%0 = tail call float @tailcallswifterror(%swift_error** swifterror %error_ptr_ref)
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ret float %0
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}
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define swiftcc float @tailcallswifterror_swiftcc(%swift_error** swifterror %error_ptr_ref) {
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entry:
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%0 = tail call swiftcc float @tailcallswifterror_swiftcc(%swift_error** swifterror %error_ptr_ref)
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ret float %0
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}
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; CHECK-LABEL: params_in_reg
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; Save callee saved registers and swifterror since it will be clobbered by the first call to params_in_reg2.
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; CHECK: stp x28, x0, [sp
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; CHECK: stp x27, x26, [sp
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||
|
|
; CHECK: stp x25, x24, [sp
|
||
|
|
; CHECK: stp x23, x22, [sp
|
||
|
|
; CHECK: stp x20, x19, [sp
|
||
|
|
; CHECK: stp x29, x30, [sp
|
||
|
|
; Store argument registers.
|
||
|
|
; CHECK: mov x20, x1
|
||
|
|
; CHECK: mov x22, x2
|
||
|
|
; CHECK: mov x23, x3
|
||
|
|
; CHECK: mov x24, x4
|
||
|
|
; CHECK: mov x25, x5
|
||
|
|
; CHECK: mov x26, x6
|
||
|
|
; CHECK: mov x27, x7
|
||
|
|
; CHECK: mov x28, x21
|
||
|
|
; Setup call.
|
||
|
|
; CHECK: mov w0, #1
|
||
|
|
; CHECK: mov w1, #2
|
||
|
|
; CHECK: mov w2, #3
|
||
|
|
; CHECK: mov w3, #4
|
||
|
|
; CHECK: mov w4, #5
|
||
|
|
; CHECK: mov w5, #6
|
||
|
|
; CHECK: mov w6, #7
|
||
|
|
; CHECK: mov w7, #8
|
||
|
|
; CHECK: str xzr, [sp]
|
||
|
|
; CHECK: mov x21, xzr
|
||
|
|
; CHECK: bl _params_in_reg2
|
||
|
|
; Restore original arguments for next call.
|
||
|
|
; CHECK: ldr x0, [sp
|
||
|
|
; CHECK: mov x1, x20
|
||
|
|
; CHECK: mov x2, x22
|
||
|
|
; CHECK: mov x3, x23
|
||
|
|
; CHECK: mov x4, x24
|
||
|
|
; CHECK: mov x5, x25
|
||
|
|
; CHECK: mov x6, x26
|
||
|
|
; CHECK: mov x7, x27
|
||
|
|
; Restore original swiftself argument and swifterror %err.
|
||
|
|
; CHECK: mov x21, x28
|
||
|
|
; CHECK: bl _params_in_reg2
|
||
|
|
; Restore calle save registers but don't clober swifterror x21.
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ldp x29, x30, [sp
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ldp x20, x19, [sp
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ldp x23, x22, [sp
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ldp x25, x24, [sp
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ldp x27, x26, [sp
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ldr x28, [sp
|
||
|
|
; CHECK-NOT: x21
|
||
|
|
; CHECK: ret
|
||
|
|
define swiftcc void @params_in_reg(i64, i64, i64, i64, i64, i64, i64, i64, i8*, %swift_error** nocapture swifterror %err) {
|
||
|
|
%error_ptr_ref = alloca swifterror %swift_error*, align 8
|
||
|
|
store %swift_error* null, %swift_error** %error_ptr_ref
|
||
|
|
call swiftcc void @params_in_reg2(i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i8* null, %swift_error** nocapture swifterror %error_ptr_ref)
|
||
|
|
call swiftcc void @params_in_reg2(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5, i64 %6, i64 %7, i8* %8, %swift_error** nocapture swifterror %err)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
declare swiftcc void @params_in_reg2(i64, i64, i64, i64, i64, i64, i64, i64, i8* , %swift_error** nocapture swifterror %err)
|
||
|
|
|
||
|
|
; CHECK-LABEL: params_and_return_in_reg
|
||
|
|
; Store callee saved registers.
|
||
|
|
; CHECK: stp x28, x0, [sp, #16
|
||
|
|
; CHECK: stp x27, x26, [sp
|
||
|
|
; CHECK: stp x25, x24, [sp
|
||
|
|
; CHECK: stp x23, x22, [sp
|
||
|
|
; CHECK: stp x20, x19, [sp
|
||
|
|
; CHECK: stp x29, x30, [sp
|
||
|
|
; Save original arguments.
|
||
|
|
; CHECK: mov x20, x1
|
||
|
|
; CHECK: mov x22, x2
|
||
|
|
; CHECK: mov x23, x3
|
||
|
|
; CHECK: mov x24, x4
|
||
|
|
; CHECK: mov x25, x5
|
||
|
|
; CHECK: mov x26, x6
|
||
|
|
; CHECK: mov x27, x7
|
||
|
|
; CHECK: mov x28, x21
|
||
|
|
; Setup call arguments.
|
||
|
|
; CHECK: mov w0, #1
|
||
|
|
; CHECK: mov w1, #2
|
||
|
|
; CHECK: mov w2, #3
|
||
|
|
; CHECK: mov w3, #4
|
||
|
|
; CHECK: mov w4, #5
|
||
|
|
; CHECK: mov w5, #6
|
||
|
|
; CHECK: mov w6, #7
|
||
|
|
; CHECK: mov w7, #8
|
||
|
|
; CHECK: mov x21, xzr
|
||
|
|
; CHECK: bl _params_in_reg2
|
||
|
|
; Store swifterror %error_ptr_ref.
|
||
|
|
; CHECK: stp {{x[0-9]+}}, x21, [sp]
|
||
|
|
; Setup call arguments from original arguments.
|
||
|
|
; CHECK: ldr x0, [sp, #24
|
||
|
|
; CHECK: mov x1, x20
|
||
|
|
; CHECK: mov x2, x22
|
||
|
|
; CHECK: mov x3, x23
|
||
|
|
; CHECK: mov x4, x24
|
||
|
|
; CHECK: mov x5, x25
|
||
|
|
; CHECK: mov x6, x26
|
||
|
|
; CHECK: mov x7, x27
|
||
|
|
; CHECK: mov x21, x28
|
||
|
|
; CHECK: bl _params_and_return_in_reg2
|
||
|
|
; Store return values.
|
||
|
|
; CHECK: mov x20, x0
|
||
|
|
; CHECK: mov x22, x1
|
||
|
|
; CHECK: mov x23, x2
|
||
|
|
; CHECK: mov x24, x3
|
||
|
|
; CHECK: mov x25, x4
|
||
|
|
; CHECK: mov x26, x5
|
||
|
|
; CHECK: mov x27, x6
|
||
|
|
; CHECK: mov x28, x7
|
||
|
|
; Save swifterror %err.
|
||
|
|
; CHECK: mov x19, x21
|
||
|
|
; Setup call.
|
||
|
|
; CHECK: mov w0, #1
|
||
|
|
; CHECK: mov w1, #2
|
||
|
|
; CHECK: mov w2, #3
|
||
|
|
; CHECK: mov w3, #4
|
||
|
|
; CHECK: mov w4, #5
|
||
|
|
; CHECK: mov w5, #6
|
||
|
|
; CHECK: mov w6, #7
|
||
|
|
; CHECK: mov w7, #8
|
||
|
|
; ... setup call with swiferror %error_ptr_ref.
|
||
|
|
; CHECK: ldr x21, [sp, #8]
|
||
|
|
; CHECK: bl _params_in_reg2
|
||
|
|
; Restore return values for return from this function.
|
||
|
|
; CHECK: mov x0, x20
|
||
|
|
; CHECK: mov x1, x22
|
||
|
|
; CHECK: mov x2, x23
|
||
|
|
; CHECK: mov x3, x24
|
||
|
|
; CHECK: mov x4, x25
|
||
|
|
; CHECK: mov x5, x26
|
||
|
|
; CHECK: mov x6, x27
|
||
|
|
; CHECK: mov x7, x28
|
||
|
|
; CHECK: mov x21, x19
|
||
|
|
; Restore callee save registers.
|
||
|
|
; CHECK: ldp x29, x30, [sp
|
||
|
|
; CHECK: ldp x20, x19, [sp
|
||
|
|
; CHECK: ldp x23, x22, [sp
|
||
|
|
; CHECK: ldp x25, x24, [sp
|
||
|
|
; CHECK: ldp x27, x26, [sp
|
||
|
|
; CHECK: ldr x28, [sp
|
||
|
|
; CHECK: ret
|
||
|
|
define swiftcc { i64, i64, i64, i64, i64, i64, i64, i64 } @params_and_return_in_reg(i64, i64, i64, i64, i64, i64, i64, i64, i8* , %swift_error** nocapture swifterror %err) {
|
||
|
|
%error_ptr_ref = alloca swifterror %swift_error*, align 8
|
||
|
|
store %swift_error* null, %swift_error** %error_ptr_ref
|
||
|
|
call swiftcc void @params_in_reg2(i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i8* null, %swift_error** nocapture swifterror %error_ptr_ref)
|
||
|
|
%val = call swiftcc { i64, i64, i64, i64, i64, i64, i64, i64 } @params_and_return_in_reg2(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5, i64 %6, i64 %7, i8* %8, %swift_error** nocapture swifterror %err)
|
||
|
|
call swiftcc void @params_in_reg2(i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i8* null, %swift_error** nocapture swifterror %error_ptr_ref)
|
||
|
|
ret { i64, i64, i64, i64, i64, i64, i64, i64 } %val
|
||
|
|
}
|
||
|
|
|
||
|
|
declare swiftcc { i64, i64, i64, i64, i64, i64, i64, i64 } @params_and_return_in_reg2(i64, i64, i64, i64, i64, i64, i64, i64, i8* , %swift_error** nocapture swifterror %err)
|
||
|
|
|
||
|
|
declare void @acallee(i8*)
|
||
|
|
|
||
|
|
; Make sure we don't tail call if the caller returns a swifterror value. We
|
||
|
|
; would have to move into the swifterror register before the tail call.
|
||
|
|
; CHECK: tailcall_from_swifterror:
|
||
|
|
; CHECK-NOT: b _acallee
|
||
|
|
; CHECK: bl _acallee
|
||
|
|
|
||
|
|
define swiftcc void @tailcall_from_swifterror(%swift_error** swifterror %error_ptr_ref) {
|
||
|
|
entry:
|
||
|
|
tail call void @acallee(i8* null)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK: tailcall_from_swifterror2
|
||
|
|
; CHECK-NOT: b _simple_fn
|
||
|
|
; CHECK: bl _simple_fn
|
||
|
|
declare void @simple_fn()
|
||
|
|
define swiftcc void @tailcall_from_swifterror2(%swift_error** swifterror %error_ptr_ref) {
|
||
|
|
tail call void @simple_fn()
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare swiftcc void @foo2(%swift_error** swifterror)
|
||
|
|
; CHECK-LABEL: testAssign
|
||
|
|
; CHECK: mov x21, xzr
|
||
|
|
; CHECK: bl _foo2
|
||
|
|
; CHECK: mov x0, x21
|
||
|
|
|
||
|
|
define swiftcc %swift_error* @testAssign(i8* %error_ref) {
|
||
|
|
entry:
|
||
|
|
%error_ptr = alloca swifterror %swift_error*
|
||
|
|
store %swift_error* null, %swift_error** %error_ptr
|
||
|
|
call swiftcc void @foo2(%swift_error** swifterror %error_ptr)
|
||
|
|
br label %a
|
||
|
|
|
||
|
|
a:
|
||
|
|
%error = load %swift_error*, %swift_error** %error_ptr
|
||
|
|
ret %swift_error* %error
|
||
|
|
}
|
||
|
|
|
||
|
|
; foo takes a swifterror parameter. We should be able to see that even when
|
||
|
|
; it isn't explicitly on the call.
|
||
|
|
define float @swifterror_param_not_on_call(i8* %error_ref) {
|
||
|
|
; CHECK-LABEL: swifterror_param_not_on_call:
|
||
|
|
; CHECK: mov [[ID:x[0-9]+]], x0
|
||
|
|
; CHECK: bl {{.*}}foo
|
||
|
|
; CHECK: mov x0, x21
|
||
|
|
; CHECK: cbnz x21
|
||
|
|
; Access part of the error object and save it to error_ref
|
||
|
|
; CHECK: ldrb [[CODE:w[0-9]+]], [x0, #8]
|
||
|
|
; CHECK: strb [[CODE]], [{{.*}}[[ID]]]
|
||
|
|
; CHECK: bl {{.*}}free
|
||
|
|
|
||
|
|
entry:
|
||
|
|
%error_ptr_ref = alloca swifterror %swift_error*
|
||
|
|
store %swift_error* null, %swift_error** %error_ptr_ref
|
||
|
|
%call = call float @foo(%swift_error** %error_ptr_ref)
|
||
|
|
%error_from_foo = load %swift_error*, %swift_error** %error_ptr_ref
|
||
|
|
%had_error_from_foo = icmp ne %swift_error* %error_from_foo, null
|
||
|
|
%tmp = bitcast %swift_error* %error_from_foo to i8*
|
||
|
|
br i1 %had_error_from_foo, label %handler, label %cont
|
||
|
|
cont:
|
||
|
|
%v1 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo, i64 0, i32 1
|
||
|
|
%t = load i8, i8* %v1
|
||
|
|
store i8 %t, i8* %error_ref
|
||
|
|
br label %handler
|
||
|
|
handler:
|
||
|
|
call void @free(i8* %tmp)
|
||
|
|
ret float 1.0
|
||
|
|
}
|
||
|
|
|
||
|
|
; foo_sret takes an sret parameter and a swifterror parameter. We should be
|
||
|
|
; able to see that, even if it's not explicitly on the call.
|
||
|
|
define float @swifterror_param_not_on_call2(i8* %error_ref) {
|
||
|
|
; CHECK-LABEL: swifterror_param_not_on_call2:
|
||
|
|
; CHECK: mov [[ID:x[0-9]+]], x0
|
||
|
|
; CHECK: mov [[ZERO:x[0-9]+]], xzr
|
||
|
|
; CHECK: bl {{.*}}foo_sret
|
||
|
|
; CHECK: mov x0, x21
|
||
|
|
; CHECK: cbnz x21
|
||
|
|
; Access part of the error object and save it to error_ref
|
||
|
|
; CHECK: ldrb [[CODE:w[0-9]+]], [x0, #8]
|
||
|
|
; CHECK: strb [[CODE]], [{{.*}}[[ID]]]
|
||
|
|
; CHECK: bl {{.*}}free
|
||
|
|
|
||
|
|
entry:
|
||
|
|
%s = alloca %struct.S, align 8
|
||
|
|
%error_ptr_ref = alloca swifterror %swift_error*
|
||
|
|
store %swift_error* null, %swift_error** %error_ptr_ref
|
||
|
|
call void @foo_sret(%struct.S* %s, i32 1, %swift_error** %error_ptr_ref)
|
||
|
|
%error_from_foo = load %swift_error*, %swift_error** %error_ptr_ref
|
||
|
|
%had_error_from_foo = icmp ne %swift_error* %error_from_foo, null
|
||
|
|
%tmp = bitcast %swift_error* %error_from_foo to i8*
|
||
|
|
br i1 %had_error_from_foo, label %handler, label %cont
|
||
|
|
cont:
|
||
|
|
%v1 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo, i64 0, i32 1
|
||
|
|
%t = load i8, i8* %v1
|
||
|
|
store i8 %t, i8* %error_ref
|
||
|
|
br label %handler
|
||
|
|
handler:
|
||
|
|
call void @free(i8* %tmp)
|
||
|
|
ret float 1.0
|
||
|
|
}
|