| ; RUN: llc -verify-machineinstrs < %s -mtriple=armv7-apple-ios | FileCheck --check-prefix=CHECK-APPLE %s |
| ; RUN: llc -verify-machineinstrs -O0 < %s -mtriple=armv7-apple-ios | FileCheck --check-prefix=CHECK-O0 %s |
| |
| declare i8* @malloc(i64) |
| declare void @free(i8*) |
| %swift_error = type { i64, i8 } |
| %struct.S = type { i32, i32, i32, i32, i32, i32 } |
| |
| ; 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-APPLE-LABEL: foo: |
| ; CHECK-APPLE: mov r0, #16 |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE-DAG: mov [[ID:r[0-9]+]], #1 |
| ; CHECK-APPLE-DAG: mov r6, r{{.*}} |
| ; CHECK-APPLE-DAG: strb [[ID]], [r{{.*}}, #8] |
| |
| ; CHECK-O0-LABEL: foo: |
| ; CHECK-O0: mov r{{.*}}, #16 |
| ; CHECK-O0: malloc |
| ; CHECK-O0: mov [[ID2:r[0-9]+]], r0 |
| ; CHECK-O0: mov [[ID:r[0-9]+]], #1 |
| ; CHECK-O0: strb [[ID]], [r0, #8] |
| ; CHECK-O0: mov r6, [[ID2]] |
| 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-APPLE-LABEL: caller: |
| ; CHECK-APPLE-DAG: mov [[ID:r[0-9]+]], r0 |
| ; CHECK-APPLE-DAG: mov r6, #0 |
| ; CHECK-APPLE: bl {{.*}}foo |
| ; CHECK-APPLE: cmp r6, #0 |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: ldrbeq [[CODE:r[0-9]+]], [r6, #8] |
| ; CHECK-APPLE: strbeq [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-APPLE: mov r0, r6 |
| ; CHECK_APPLE: bl {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller: |
| ; spill r0 |
| ; CHECK-O0-DAG: str r0, |
| ; CHECK-O0-DAG: mov r6, #0 |
| ; CHECK-O0: bl {{.*}}foo |
| ; CHECK-O0: mov r{{.*}}, r6 |
| ; CHECK-O0: bne |
| ; CHECK-O0: ldrb [[CODE:r[0-9]+]], [r0, #8] |
| ; reload r0 |
| ; CHECK-O0: ldr [[ID:r[0-9]+]], |
| ; CHECK-O0: strb [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-O0: mov r0, |
| ; CHECK-O0: 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-APPLE-LABEL: caller2: |
| ; CHECK-APPLE-DAG: mov [[ID:r[0-9]+]], r0 |
| ; CHECK-APPLE-DAG: mov r6, #0 |
| ; CHECK-APPLE: bl {{.*}}foo |
| ; CHECK-APPLE: cmp r6, #0 |
| ; CHECK-APPLE: bne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: ldrb [[CODE:r[0-9]+]], [r6, #8] |
| ; CHECK-APPLE: strb [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-APPLE: mov r0, r6 |
| ; CHECK_APPLE: bl {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller2: |
| ; spill r0 |
| ; CHECK-O0-DAG: str r0, |
| ; CHECK-O0-DAG: mov r6, #0 |
| ; CHECK-O0: bl {{.*}}foo |
| ; CHECK-O0: mov r{{.*}}, r6 |
| ; CHECK-O0: bne |
| ; CHECK-O0: ble |
| ; CHECK-O0: ldrb [[CODE:r[0-9]+]], [r0, #8] |
| ; reload r0 |
| ; CHECK-O0: ldr [[ID:r[0-9]+]], |
| ; CHECK-O0: strb [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-O0: mov r0, |
| ; CHECK-O0: 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-APPLE-LABEL: foo_if: |
| ; CHECK-APPLE: cmp r0, #0 |
| ; CHECK-APPLE: eq |
| ; CHECK-APPLE: mov r0, #16 |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: mov [[ID:r[0-9]+]], #1 |
| ; CHECK-APPLE-DAG: mov r6, r{{.*}} |
| ; CHECK-APPLE-DAG: strb [[ID]], [r{{.*}}, #8] |
| |
| ; CHECK-O0-LABEL: foo_if: |
| ; CHECK-O0: cmp r0, #0 |
| ; spill to stack |
| ; CHECK-O0: str r6 |
| ; CHECK-O0: beq |
| ; CHECK-O0: mov r0, #16 |
| ; CHECK-O0: malloc |
| ; CHECK-O0: mov [[ID:r[0-9]+]], r0 |
| ; CHECK-O0: mov [[ID2:[a-z0-9]+]], #1 |
| ; CHECK-O0: strb [[ID2]], [r0, #8] |
| ; CHECK-O0: mov r6, [[ID]] |
| ; reload from stack |
| ; CHECK-O0: ldr r6 |
| 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-APPLE-LABEL: foo_loop: |
| ; CHECK-APPLE: mov [[CODE:r[0-9]+]], r0 |
| ; swifterror is kept in a register |
| ; CHECK-APPLE: mov [[ID:r[0-9]+]], r6 |
| ; CHECK-APPLE: cmp [[CODE]], #0 |
| ; CHECK-APPLE: beq |
| ; CHECK-APPLE: mov r0, #16 |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: strb r{{.*}}, [{{.*}}[[ID]], #8] |
| ; CHECK-APPLE: ble |
| ; CHECK-APPLE: mov r6, [[ID]] |
| |
| ; CHECK-O0-LABEL: foo_loop: |
| ; CHECK-O0: mov r{{.*}}, r6 |
| ; CHECK-O0: cmp r{{.*}}, #0 |
| ; CHECK-O0: beq |
| ; CHECK-O0-DAG: movw r{{.*}}, #1 |
| ; CHECK-O0-DAG: mov r{{.*}}, #16 |
| ; CHECK-O0: malloc |
| ; CHECK-O0-DAG: mov [[ID:r[0-9]+]], r0 |
| ; CHECK-O0-DAG: ldr [[ID2:r[0-9]+]], [sp{{.*}}] |
| ; CHECK-O0: strb [[ID2]], [{{.*}}[[ID]], #8] |
| ; spill r0 |
| ; CHECK-O0: str r0, [sp{{.*}}] |
| ; CHECK-O0: vcmpe |
| ; CHECK-O0: ble |
| ; reload from stack |
| ; CHECK-O0: ldr r6 |
| 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 |
| } |
| |
| ; "foo_sret" is a function that takes a swifterror parameter, it also has a sret |
| ; parameter. |
| define void @foo_sret(%struct.S* sret %agg.result, i32 %val1, %swift_error** swifterror %error_ptr_ref) { |
| ; CHECK-APPLE-LABEL: foo_sret: |
| ; CHECK-APPLE: mov [[SRET:r[0-9]+]], r0 |
| ; CHECK-APPLE: mov r0, #16 |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: mov [[REG:r[0-9]+]], #1 |
| ; CHECK-APPLE-DAG: mov r6, r0 |
| ; CHECK-APPLE-DAG: strb [[REG]], [r0, #8] |
| ; CHECK-APPLE-DAG: str r{{.*}}, [{{.*}}[[SRET]], #4] |
| |
| ; CHECK-O0-LABEL: foo_sret: |
| ; CHECK-O0: mov r{{.*}}, #16 |
| ; spill to stack: sret and val1 |
| ; CHECK-O0-DAG: str r0 |
| ; CHECK-O0-DAG: str r1 |
| ; CHECK-O0: malloc |
| ; CHECK-O0: mov [[ID:r[0-9]+]], #1 |
| ; CHECK-O0: strb [[ID]], [r0, #8] |
| ; reload from stack: sret and val1 |
| ; CHECK-O0: ldr |
| ; CHECK-O0: ldr |
| ; CHECK-O0: str r{{.*}}, [{{.*}}, #4] |
| ; CHECK-O0: mov r6 |
| 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-APPLE-LABEL: caller3: |
| ; CHECK-APPLE: mov [[ID:r[0-9]+]], r0 |
| ; CHECK-APPLE: mov r6, #0 |
| ; CHECK-APPLE: bl {{.*}}foo_sret |
| ; CHECK-APPLE: cmp r6, #0 |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: ldrbeq [[CODE:r[0-9]+]], [r6, #8] |
| ; CHECK-APPLE: strbeq [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-APPLE: mov r0, r6 |
| ; CHECK_APPLE: bl {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller3: |
| ; CHECK-O0-DAG: mov r6, #0 |
| ; CHECK-O0-DAG: mov r0 |
| ; CHECK-O0-DAG: mov r1 |
| ; CHECK-O0: bl {{.*}}foo_sret |
| ; CHECK-O0: mov [[ID2:r[0-9]+]], r6 |
| ; CHECK-O0: cmp [[ID2]] |
| ; CHECK-O0: bne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-O0: ldrb [[CODE:r[0-9]+]] |
| ; CHECK-O0: ldr [[ID:r[0-9]+]] |
| ; CHECK-O0: strb [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-O0: mov r0, |
| ; CHECK_O0: 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 %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-APPLE-LABEL: foo_vararg: |
| ; CHECK-APPLE: mov r0, #16 |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: mov [[REG:r[0-9]+]], r0 |
| ; CHECK-APPLE: mov [[ID:r[0-9]+]], #1 |
| ; CHECK-APPLE-DAG: strb [[ID]], [{{.*}}[[REG]], #8] |
| ; CHECK-APPLE-DAG: mov r6, [[REG]] |
| |
| 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-APPLE-LABEL: caller4: |
| ; CHECK-APPLE: mov [[ID:r[0-9]+]], r0 |
| ; CHECK-APPLE: mov r6, #0 |
| ; CHECK-APPLE: bl {{.*}}foo_vararg |
| ; CHECK-APPLE: cmp r6, #0 |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: ldrbeq [[CODE:r[0-9]+]], [r6, #8] |
| ; CHECK-APPLE: strbeq [[CODE]], [{{.*}}[[ID]]] |
| ; CHECK-APPLE: mov r0, r6 |
| ; CHECK_APPLE: 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 |
| } |
