| ; RUN: llc -verify-machineinstrs < %s -mtriple=x86_64-apple-darwin | FileCheck --check-prefix=CHECK-APPLE %s |
| ; RUN: llc -verify-machineinstrs -O0 < %s -mtriple=x86_64-apple-darwin | FileCheck --check-prefix=CHECK-O0 %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-APPLE-LABEL: foo: |
| ; CHECK-APPLE: movl $16, %edi |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: movb $1, 8(%rax) |
| ; CHECK-APPLE: movq %rax, %r12 |
| |
| ; CHECK-O0-LABEL: foo: |
| ; CHECK-O0: movl $16 |
| ; CHECK-O0: malloc |
| ; CHECK-O0: movb $1, 8(%rax) |
| ; CHECK-O0: movq %{{.*}}, %r12 |
| 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: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq {{.*}}foo |
| ; CHECK-APPLE: testq %r12, %r12 |
| ; CHECK-APPLE: jne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: movb 8(%r12) |
| ; CHECK-APPLE: movq %r12, %rdi |
| ; CHECK_APPLE: callq {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller: |
| ; CHECK-O0: xorl |
| ; CHECK-O0: movl %{{.*}}, %r12d |
| ; CHECK-O0: callq {{.*}}foo |
| ; CHECK-O0: jne |
| 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: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq {{.*}}foo |
| ; CHECK-APPLE: testq %r12, %r12 |
| ; CHECK-APPLE: jne |
| ; CHECK-APPLE: ucomiss |
| ; CHECK-APPLE: jbe |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: movb 8(%r12) |
| ; CHECK-APPLE: movq %r12, %rdi |
| ; CHECK_APPLE: callq {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller2: |
| ; CHECK-O0: xorl |
| ; CHECK-O0: movl %{{.*}}, %r12d |
| ; CHECK-O0: callq {{.*}}foo |
| ; CHECK-O0: movq %r12, [[ID:%[a-z]+]] |
| ; CHECK-O0: cmpq $0, [[ID]] |
| ; CHECK-O0: jne |
| 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: testl %edi, %edi |
| ; CHECK-APPLE: je |
| ; CHECK-APPLE: movl $16, %edi |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: movb $1, 8(%rax) |
| ; CHECK-APPLE: movq %rax, %r12 |
| ; CHECK-APPLE-NOT: %r12 |
| ; CHECK-APPLE: ret |
| |
| ; CHECK-O0-LABEL: foo_if: |
| ; CHECK-O0: cmpl $0 |
| ; spill to stack |
| ; CHECK-O0: movq %r12, {{.*}}(%rsp) |
| ; CHECK-O0: je |
| ; CHECK-O0: movl $16, |
| ; CHECK-O0: malloc |
| ; CHECK-O0: movq %rax, [[ID:%[a-z]+]] |
| ; CHECK-O0-DAG: movb $1, 8(%rax) |
| ; CHECK-O0-DAG: movq [[ID]], %r12 |
| ; CHECK-O0: ret |
| ; reload from stack |
| ; CHECK-O0: movq {{.*}}(%rsp), %r12 |
| ; CHECK-O0: 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-APPLE-LABEL: foo_loop: |
| ; CHECK-APPLE: movq %r12, %rax |
| ; CHECK-APPLE: testl |
| ; CHECK-APPLE: je |
| ; CHECK-APPLE: movl $16, %edi |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: movb $1, 8(%rax) |
| ; CHECK-APPLE: ucomiss |
| ; CHECK-APPLE: jbe |
| ; CHECK-APPLE: movq %rax, %r12 |
| ; CHECK-APPLE: ret |
| |
| ; CHECK-O0-LABEL: foo_loop: |
| ; spill to stack |
| ; CHECK-O0: movq %r12, {{.*}}(%rsp) |
| ; CHECK-O0: cmpl $0 |
| ; CHECK-O0: je |
| ; CHECK-O0: movl $16, |
| ; CHECK-O0: malloc |
| ; CHECK-O0: movq %rax, [[ID:%[a-z]+]] |
| ; CHECK-O0: movb $1, 8([[ID]]) |
| ; CHECK-O0: jbe |
| ; reload from stack |
| ; CHECK-O0: movq {{.*}}(%rsp), %r12 |
| ; CHECK-O0: 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 %agg.result, i32 %val1, %swift_error** swifterror %error_ptr_ref) { |
| ; CHECK-APPLE-LABEL: foo_sret: |
| ; CHECK-APPLE: movq %rdi, %{{.*}} |
| ; CHECK-APPLE: movl $16, %edi |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: movb $1, 8(%rax) |
| ; CHECK-APPLE: movl %{{.*}}, 4(%{{.*}}) |
| ; CHECK-APPLE: movq %rax, %r12 |
| ; CHECK-APPLE: movq %{{.*}}, %rax |
| ; CHECK-APPLE-NOT: x19 |
| |
| ; CHECK-O0-LABEL: foo_sret: |
| ; CHECK-O0: movl $16, |
| ; spill sret to stack |
| ; CHECK-O0: movq %rdi, |
| ; CHECK-O0: movq {{.*}}, %rdi |
| ; CHECK-O0: malloc |
| ; CHECK-O0: movb $1, 8(%rax) |
| ; CHECK-O0: movl %{{.*}}, 4(%{{.*}}) |
| ; CHECK-O0: movq %{{.*}}, %r12 |
| ; reload sret from stack |
| ; CHECK-O0: movq {{.*}}(%rsp), %rax |
| ; CHECK-O0: ret |
| 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: movl $1, %esi |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq {{.*}}foo_sret |
| ; CHECK-APPLE: testq %r12, %r12 |
| ; CHECK-APPLE: jne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: movb 8(%r12), |
| ; CHECK-APPLE: movb %{{.*}}, |
| ; CHECK-APPLE: movq %r12, %rdi |
| ; CHECK_APPLE: callq {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller3: |
| ; CHECK-O0: xorl |
| ; CHECK-O0: movl {{.*}}, %r12d |
| ; CHECK-O0: movl $1, %esi |
| ; CHECK-O0: movq {{.*}}, %rdi |
| ; CHECK-O0: callq {{.*}}foo_sret |
| ; CHECK-O0: movq %r12, |
| ; CHECK-O0: cmpq $0 |
| ; CHECK-O0: jne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-O0: movb 8(%{{.*}}), |
| ; CHECK-O0: movb %{{.*}}, |
| ; reload from stack |
| ; CHECK-O0: movq {{.*}}(%rsp), %rdi |
| ; CHECK-O0: callq {{.*}}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 |
| } |
| |
| ; This is a caller with multiple swifterror values, it calls "foo" twice, each |
| ; time with a different swifterror value, from "alloca swifterror". |
| define float @caller_with_multiple_swifterror_values(i8* %error_ref, i8* %error_ref2) { |
| ; CHECK-APPLE-LABEL: caller_with_multiple_swifterror_values: |
| |
| ; The first swifterror value: |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq {{.*}}foo |
| ; CHECK-APPLE: testq %r12, %r12 |
| ; CHECK-APPLE: jne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: movb 8(%r12) |
| ; CHECK-APPLE: movq %r12, %rdi |
| ; CHECK_APPLE: callq {{.*}}free |
| |
| ; The second swifterror value: |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq {{.*}}foo |
| ; CHECK-APPLE: testq %r12, %r12 |
| ; CHECK-APPLE: jne |
| ; Access part of the error object and save it to error_ref |
| ; CHECK-APPLE: movb 8(%r12) |
| ; CHECK-APPLE: movq %r12, %rdi |
| ; CHECK_APPLE: callq {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller_with_multiple_swifterror_values: |
| |
| ; The first swifterror value: |
| ; CHECK-O0: xorl |
| ; CHECK-O0: movl %{{.*}}, %r12d |
| ; CHECK-O0: callq {{.*}}foo |
| ; CHECK-O0: jne |
| |
| ; The second swifterror value: |
| ; CHECK-O0: xorl |
| ; CHECK-O0: movl %{{.*}}, %r12d |
| ; CHECK-O0: callq {{.*}}foo |
| ; CHECK-O0: jne |
| 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) |
| |
| %error_ptr_ref2 = alloca swifterror %swift_error* |
| store %swift_error* null, %swift_error** %error_ptr_ref2 |
| %call2 = call float @foo(%swift_error** swifterror %error_ptr_ref2) |
| %error_from_foo2 = load %swift_error*, %swift_error** %error_ptr_ref2 |
| %had_error_from_foo2 = icmp ne %swift_error* %error_from_foo2, null |
| %bitcast2 = bitcast %swift_error* %error_from_foo2 to i8* |
| br i1 %had_error_from_foo2, label %handler2, label %cont2 |
| cont2: |
| %v2 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo2, i64 0, i32 1 |
| %t2 = load i8, i8* %v2 |
| store i8 %t2, i8* %error_ref2 |
| br label %handler2 |
| handler2: |
| call void @free(i8* %bitcast2) |
| |
| ret float 1.0 |
| } |