| ; RUN: llc -verify-machineinstrs -frame-pointer=all -global-isel < %s -mtriple=aarch64-apple-ios -disable-post-ra | FileCheck %s |
| |
| declare i8* @malloc(i64) |
| declare void @free(i8*) |
| %swift_error = type {i64, i8} |
| |
| ; This tests the basic usage of a swifterror parameter. "foo" is the function |
| ; that takes a swifterror parameter and "caller" is the caller of "foo". |
| define float @foo(%swift_error** swifterror %error_ptr_ref) { |
| ; CHECK-LABEL: foo: |
| ; CHECK: mov w0, #16 |
| ; CHECK: malloc |
| ; CHECK: mov [[ID:w[0-9]+]], #1 |
| ; CHECK: strb [[ID]], [x0, #8] |
| ; CHECK: mov x21, x0 |
| ; CHECK-NOT: x21 |
| |
| entry: |
| %call = call i8* @malloc(i64 16) |
| %call.0 = bitcast i8* %call to %swift_error* |
| store %swift_error* %call.0, %swift_error** %error_ptr_ref |
| %tmp = getelementptr inbounds i8, i8* %call, i64 8 |
| store i8 1, i8* %tmp |
| ret float 1.0 |
| } |
| |
| ; "caller" calls "foo" that takes a swifterror parameter. |
| define float @caller(i8* %error_ref) { |
| ; CHECK-LABEL: caller: |
| ; 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** swifterror %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 |
| } |
| |
| ; "caller2" is the caller of "foo", it calls "foo" inside a loop. |
| define float @caller2(i8* %error_ref) { |
| ; CHECK-LABEL: caller2: |
| ; CHECK: mov [[ID:x[0-9]+]], x0 |
| ; CHECK: fmov [[CMP:s[0-9]+]], #1.0 |
| ; CHECK: mov x21, xzr |
| ; CHECK: bl {{.*}}foo |
| ; CHECK: cbnz x21 |
| ; CHECK: fcmp s0, [[CMP]] |
| ; CHECK: b.le |
| ; Access part of the error object and save it to error_ref |
| ; CHECK: ldrb [[CODE:w[0-9]+]], [x21, #8] |
| ; CHECK: strb [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK: mov x0, x21 |
| ; CHECK: bl {{.*}}free |
| |
| entry: |
| %error_ptr_ref = alloca swifterror %swift_error* |
| br label %bb_loop |
| bb_loop: |
| store %swift_error* null, %swift_error** %error_ptr_ref |
| %call = call float @foo(%swift_error** swifterror %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: |
| %cmp = fcmp ogt float %call, 1.000000e+00 |
| br i1 %cmp, label %bb_end, label %bb_loop |
| bb_end: |
| %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_if" is a function that takes a swifterror parameter, it sets swifterror |
| ; under a certain condition. |
| define float @foo_if(%swift_error** swifterror %error_ptr_ref, i32 %cc) { |
| ; CHECK-LABEL: foo_if: |
| ; CHECK: cbz w0 |
| ; CHECK: mov w0, #16 |
| ; CHECK: malloc |
| ; CHECK: mov [[ID:w[0-9]+]], #1 |
| ; CHECK: strb [[ID]], [x0, #8] |
| ; CHECK: mov x21, x0 |
| ; CHECK-NOT: x21 |
| ; CHECK: ret |
| |
| entry: |
| %cond = icmp ne i32 %cc, 0 |
| br i1 %cond, label %gen_error, label %normal |
| |
| gen_error: |
| %call = call i8* @malloc(i64 16) |
| %call.0 = bitcast i8* %call to %swift_error* |
| store %swift_error* %call.0, %swift_error** %error_ptr_ref |
| %tmp = getelementptr inbounds i8, i8* %call, i64 8 |
| store i8 1, i8* %tmp |
| ret float 1.0 |
| |
| normal: |
| ret float 0.0 |
| } |
| |
| ; "foo_loop" is a function that takes a swifterror parameter, it sets swifterror |
| ; under a certain condition inside a loop. |
| define float @foo_loop(%swift_error** swifterror %error_ptr_ref, i32 %cc, float %cc2) { |
| ; CHECK-LABEL: foo_loop: |
| ; CHECK: cbz |
| ; CHECK: mov w0, #16 |
| ; CHECK: malloc |
| ; CHECK: mov x21, x0 |
| ; CHECK: strb w{{.*}}, [x0, #8] |
| ; CHECK: ret |
| |
| entry: |
| br label %bb_loop |
| |
| bb_loop: |
| %cond = icmp ne i32 %cc, 0 |
| br i1 %cond, label %gen_error, label %bb_cont |
| |
| gen_error: |
| %call = call i8* @malloc(i64 16) |
| %call.0 = bitcast i8* %call to %swift_error* |
| store %swift_error* %call.0, %swift_error** %error_ptr_ref |
| %tmp = getelementptr inbounds i8, i8* %call, i64 8 |
| store i8 1, i8* %tmp |
| br label %bb_cont |
| |
| bb_cont: |
| %cmp = fcmp ogt float %cc2, 1.000000e+00 |
| br i1 %cmp, label %bb_end, label %bb_loop |
| bb_end: |
| ret float 0.0 |
| } |
| |
| %struct.S = type { i32, i32, i32, i32, i32, i32 } |
| |
| ; "foo_sret" is a function that takes a swifterror parameter, it also has a sret |
| ; parameter. |
| define void @foo_sret(%struct.S* sret(%struct.S) %agg.result, i32 %val1, %swift_error** swifterror %error_ptr_ref) { |
| ; CHECK-LABEL: foo_sret: |
| ; CHECK: mov [[SRET:x[0-9]+]], x8 |
| ; CHECK: mov w0, #16 |
| ; CHECK: malloc |
| ; CHECK: mov [[ID:w[0-9]+]], #1 |
| ; CHECK: strb [[ID]], [x0, #8] |
| ; CHECK: str w{{.*}}, [{{.*}}[[SRET]], #4] |
| ; CHECK: mov x21, x0 |
| ; CHECK-NOT: x21 |
| |
| entry: |
| %call = call i8* @malloc(i64 16) |
| %call.0 = bitcast i8* %call to %swift_error* |
| store %swift_error* %call.0, %swift_error** %error_ptr_ref |
| %tmp = getelementptr inbounds i8, i8* %call, i64 8 |
| store i8 1, i8* %tmp |
| %v2 = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 1 |
| store i32 %val1, i32* %v2 |
| ret void |
| } |
| |
| ; "caller3" calls "foo_sret" that takes a swifterror parameter. |
| define float @caller3(i8* %error_ref) { |
| ; CHECK-LABEL: caller3: |
| ; 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* sret(%struct.S) %s, i32 1, %swift_error** swifterror %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_vararg" is a function that takes a swifterror parameter, it also has |
| ; variable number of arguments. |
| declare void @llvm.va_start(i8*) nounwind |
| define float @foo_vararg(%swift_error** swifterror %error_ptr_ref, ...) { |
| ; CHECK-LABEL: foo_vararg: |
| ; CHECK: mov w0, #16 |
| ; CHECK: malloc |
| ; CHECK-DAG: mov [[ID:w[0-9]+]], #1 |
| ; CHECK-DAG: strb [[ID]], [x0, #8] |
| |
| ; First vararg |
| ; CHECK: ldr {{w[0-9]+}}, [x[[ARG1:[0-9]+]]], #8 |
| ; Second vararg |
| ; CHECK: ldr {{w[0-9]+}}, [x[[ARG1]]], #8 |
| ; Third vararg |
| ; CHECK: ldr {{w[0-9]+}}, [x[[ARG1]]], #8 |
| |
| ; CHECK: mov x21, x0 |
| ; CHECK-NOT: x21 |
| entry: |
| %call = call i8* @malloc(i64 16) |
| %call.0 = bitcast i8* %call to %swift_error* |
| store %swift_error* %call.0, %swift_error** %error_ptr_ref |
| %tmp = getelementptr inbounds i8, i8* %call, i64 8 |
| store i8 1, i8* %tmp |
| |
| %args = alloca i8*, align 8 |
| %a10 = alloca i32, align 4 |
| %a11 = alloca i32, align 4 |
| %a12 = alloca i32, align 4 |
| %v10 = bitcast i8** %args to i8* |
| call void @llvm.va_start(i8* %v10) |
| %v11 = va_arg i8** %args, i32 |
| store i32 %v11, i32* %a10, align 4 |
| %v12 = va_arg i8** %args, i32 |
| store i32 %v12, i32* %a11, align 4 |
| %v13 = va_arg i8** %args, i32 |
| store i32 %v13, i32* %a12, align 4 |
| |
| ret float 1.0 |
| } |
| |
| ; "caller4" calls "foo_vararg" that takes a swifterror parameter. |
| define float @caller4(i8* %error_ref) { |
| ; CHECK-LABEL: caller4: |
| |
| ; CHECK: mov [[ID:x[0-9]+]], x0 |
| ; CHECK: stp {{x[0-9]+}}, {{x[0-9]+}}, [sp] |
| ; CHECK: str {{x[0-9]+}}, [sp, #16] |
| ; CHECK: mov x21, xzr |
| |
| ; CHECK: bl {{.*}}foo_vararg |
| ; 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 |
| |
| %a10 = alloca i32, align 4 |
| %a11 = alloca i32, align 4 |
| %a12 = alloca i32, align 4 |
| store i32 10, i32* %a10, align 4 |
| store i32 11, i32* %a11, align 4 |
| store i32 12, i32* %a12, align 4 |
| %v10 = load i32, i32* %a10, align 4 |
| %v11 = load i32, i32* %a11, align 4 |
| %v12 = load i32, i32* %a12, align 4 |
| |
| %call = call float (%swift_error**, ...) @foo_vararg(%swift_error** swifterror %error_ptr_ref, i32 %v10, i32 %v11, i32 %v12) |
| %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 |
| } |
| |
| ; Check that we don't blow up on tail calling swifterror argument functions. |
| define float @tailcallswifterror(%swift_error** swifterror %error_ptr_ref) { |
| entry: |
| %0 = tail call float @tailcallswifterror(%swift_error** swifterror %error_ptr_ref) |
| ret float %0 |
| } |
| define swiftcc float @tailcallswifterror_swiftcc(%swift_error** swifterror %error_ptr_ref) { |
| entry: |
| %0 = tail call swiftcc float @tailcallswifterror_swiftcc(%swift_error** swifterror %error_ptr_ref) |
| ret float %0 |
| } |
| |
| ; CHECK-LABEL: params_in_reg |
| ; Save callee saved registers and swifterror since it will be clobbered by the first call to params_in_reg2. |
| ; CHECK: stp x28, x0, [sp |
| ; 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 |
| ; 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 |
| } |
