| ; RUN: llc -verify-machineinstrs < %s -mtriple=x86_64-apple-darwin -disable-block-placement | FileCheck --check-prefix=CHECK-APPLE %s |
| ; RUN: llc -verify-machineinstrs -O0 < %s -mtriple=x86_64-apple-darwin -disable-block-placement | FileCheck --check-prefix=CHECK-O0 %s |
| ; RUN: llc -verify-machineinstrs < %s -mtriple=i386-apple-darwin -disable-block-placement | FileCheck --check-prefix=CHECK-i386 %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: movq %{{.*}}, %r12 |
| ; CHECK-O0: movb $1, 8(%rax) |
| |
| 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(%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, %r12 |
| ; 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: |
| ; 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, %r12 |
| ; CHECK-O0-DAG: movb $1, 8(%rax) |
| ; 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-z0-9]+]] |
| ; 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(%struct.S) %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: |
| ; spill sret to stack |
| ; CHECK-O0: movq %rdi, |
| ; CHECK-O0: movl $16, |
| ; CHECK-O0: malloc |
| ; reload sret from stack |
| ; CHECK-O0: movq {{.*}}(%rsp), %rax |
| ; CHECK-O0: movq %{{.*}}, %r12 |
| ; CHECK-O0: movb $1, 8(%rcx) |
| ; CHECK-O0: movl %{{.*}}, 4(%{{.*}}) |
| ; 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(%rdi), |
| ; CHECK-APPLE: movb %{{.*}}, |
| ; CHECK-APPLE: callq {{.*}}free |
| |
| ; CHECK-O0-LABEL: caller3: |
| ; CHECK-O0: xorl |
| ; CHECK-O0: movl {{.*}}, %r12d |
| ; CHECK-O0: leaq {{.*}}, %rdi |
| ; CHECK-O0: movl $1, %esi |
| ; 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(%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 |
| } |
| |
| ; 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(%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(%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 |
| } |
| |
| %swift.refcounted = type opaque |
| |
| ; This test checks that we don't create bad phi nodes as part of swifterror |
| ; isel. We used to fail machine ir verification. |
| ; CHECK-APPLE: _swifterror_isel |
| ; CHECK-O0: _swifterror_isel |
| define void @swifterror_isel(%swift.refcounted*) { |
| entry: |
| %swifterror = alloca swifterror %swift_error*, align 8 |
| br i1 undef, label %5, label %1 |
| |
| %2 = phi i16 [ %4, %1 ], [ undef, %entry ] |
| %3 = call i1 undef(i16 %2, %swift.refcounted* swiftself %0, %swift_error** nocapture swifterror %swifterror) |
| %4 = load i16, i16* undef, align 2 |
| br label %1 |
| |
| ret void |
| } |
| |
| ; This tests the basic usage of a swifterror parameter with swiftcc. |
| define swiftcc float @foo_swiftcc(%swift_error** swifterror %error_ptr_ref) { |
| ; CHECK-APPLE-LABEL: foo_swiftcc: |
| ; CHECK-APPLE: movl $16, %edi |
| ; CHECK-APPLE: malloc |
| ; CHECK-APPLE: movb $1, 8(%rax) |
| ; CHECK-APPLE: movq %rax, %r12 |
| |
| ; CHECK-O0-LABEL: foo_swiftcc: |
| ; CHECK-O0: movl $16 |
| ; CHECK-O0: malloc |
| ; CHECK-O0: movq %{{.*}}, %r12 |
| ; CHECK-O0: movb $1, 8(%rax) |
| |
| 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 |
| } |
| |
| declare swiftcc float @moo(%swift_error** swifterror) |
| |
| ; Test parameter forwarding. |
| define swiftcc float @forward_swifterror(%swift_error** swifterror %error_ptr_ref) { |
| ; CHECK-APPLE-LABEL: forward_swifterror: |
| ; CHECK-APPLE: pushq %rax |
| ; CHECK-APPLE: callq _moo |
| ; CHECK-APPLE: popq %rax |
| ; CHECK-APPLE: retq |
| |
| ; CHECK-O0-LABEL: forward_swifterror: |
| ; CHECK-O0: pushq %rax |
| ; CHECK-O0: callq _moo |
| ; CHECK-O0: popq %rax |
| ; CHECK-O0: retq |
| |
| entry: |
| %call = call swiftcc float @moo(%swift_error** swifterror %error_ptr_ref) |
| ret float %call |
| } |
| |
| define swiftcc float @conditionally_forward_swifterror(%swift_error** swifterror %error_ptr_ref, i32 %cc) { |
| ; CHECK-APPLE-LABEL: conditionally_forward_swifterror: |
| ; CHECK-APPLE: testl %edi, %edi |
| ; CHECK-APPLE: je |
| |
| ; CHECK-APPLE: pushq %rax |
| ; CHECK-APPLE: callq _moo |
| ; CHECK-APPLE: popq %rax |
| ; CHECK-APPLE: retq |
| |
| ; CHECK-APPLE: xorps %xmm0, %xmm0 |
| ; CHECK-APPLE: retq |
| |
| ; CHECK-O0-LABEL: conditionally_forward_swifterror: |
| ; CHECK-O0: pushq [[REG1:%[a-z0-9]+]] |
| ; CHECK-O0-DAG: movq %r12, (%rsp) |
| ; CHECK-O0: cmpl $0, %edi |
| ; CHECK-O0: je |
| |
| ; CHECK-O0: movq (%rsp), %r12 |
| ; CHECK-O0: callq _moo |
| ; CHECK-O0: popq [[REG1]] |
| ; CHECK-O0: retq |
| |
| ; CHECK-O0: movq (%rsp), %r12 |
| ; CHECK-O0: xorps %xmm0, %xmm0 |
| ; CHECK-O0: popq [[REG1]] |
| ; CHECK-O0: retq |
| entry: |
| %cond = icmp ne i32 %cc, 0 |
| br i1 %cond, label %gen_error, label %normal |
| |
| gen_error: |
| %call = call swiftcc float @moo(%swift_error** swifterror %error_ptr_ref) |
| ret float %call |
| |
| normal: |
| ret float 0.0 |
| } |
| |
| ; 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 that we can handle an empty function with swifterror argument. |
| ; CHECK-i386-LABEL: empty_swiftcc: |
| ; CHECK-i386: movl 4(%esp), %eax |
| ; CHECK-i386: movl 8(%esp), %edx |
| ; CHECK-i386: movl 12(%esp), %ecx |
| ; CHECK-i386: retl |
| ; CHECK-APPLE-LABEL: empty_swiftcc: |
| ; CHECK-APPLE: movl %edx, %ecx |
| ; CHECK-APPLE-DAG: movl %edi, %eax |
| ; CHECK-APPLE-DAG: movl %esi, %edx |
| ; CHECK-APPLE: retq |
| define swiftcc {i32, i32, i32} @empty_swiftcc({i32, i32, i32} , %swift_error** swifterror %error_ptr_ref) { |
| entry: |
| ret {i32, i32, i32} %0 |
| } |
| |
| ; Make sure we can handle the case when isel generates new machine basic blocks. |
| ; CHECK-APPLE-LABEL: dont_crash_on_new_isel_blocks: |
| ; CHECK-APPLE: xorl %eax, %eax |
| ; CHECK-APPLE: testb %al, %al |
| ; CHECK-APPLE: jne |
| ; CHECK-APPLE: pushq %rax |
| ; CHECK-APPLE-NEXT: .cfi_def_cfa_offset 16 |
| ; CHECK-APPLE-NEXT: callq *%rax |
| ; CHECK-APPLE-NEXT: popq %rax |
| ; CHECK-APPLE-NEXT: ret |
| |
| define swiftcc void @dont_crash_on_new_isel_blocks(%swift_error** nocapture swifterror, i1, i8**) { |
| entry: |
| %3 = or i1 false, %1 |
| br i1 %3, label %cont, label %falsebb |
| |
| falsebb: |
| %4 = load i8*, i8** %2, align 8 |
| br label %cont |
| |
| cont: |
| tail call swiftcc void undef(%swift_error** nocapture swifterror %0) |
| ret void |
| } |
| |
| ; CHECK-APPLE-LABEL: swifterror_clobber |
| ; CHECK-APPLE: movq %r12, [[REG:%.*]] |
| ; CHECK-APPLE: nop |
| ; CHECK-APPLE: movq [[REG]], %r12 |
| define swiftcc void @swifterror_clobber(%swift_error** nocapture swifterror %err) { |
| call void asm sideeffect "nop", "~{r12}"() |
| ret void |
| } |
| |
| ; CHECK-APPLE-LABEL: swifterror_reg_clobber |
| ; CHECK-APPLE: pushq %r12 |
| ; CHECK-APPLE: nop |
| ; CHECK-APPLE: popq %r12 |
| define swiftcc void @swifterror_reg_clobber(%swift_error** nocapture %err) { |
| call void asm sideeffect "nop", "~{r12}"() |
| ret void |
| } |
| |
| ; CHECK-APPLE-LABEL: params_in_reg |
| ; Save callee save registers to store clobbered arguments. |
| ; CHECK-APPLE: pushq %rbp |
| ; CHECK-APPLE: pushq %r15 |
| ; CHECK-APPLE: pushq %r14 |
| ; Clobbered swiftself register. |
| ; CHECK-APPLE: pushq %r13 |
| ; CHECK-APPLE: pushq %rbx |
| ; CHECK-APPLE: subq $48, %rsp |
| ; Save arguments. |
| ; CHECK-APPLE: movq %r12, 32(%rsp) |
| ; CHECK-APPLE: movq %r13, 24(%rsp) |
| ; CHECK-APPLE: movq %r9, 16(%rsp) |
| ; CHECK-APPLE: movq %r8, 8(%rsp) |
| ; CHECK-APPLE: movq %rcx, %r14 |
| ; CHECK-APPLE: movq %rdx, %r15 |
| ; CHECK-APPLE: movq %rsi, %rbx |
| ; CHECK-APPLE: movq %rdi, %rbp |
| ; Setup call. |
| ; CHECK-APPLE: movl $1, %edi |
| ; CHECK-APPLE: movl $2, %esi |
| ; CHECK-APPLE: movl $3, %edx |
| ; CHECK-APPLE: movl $4, %ecx |
| ; CHECK-APPLE: movl $5, %r8d |
| ; CHECK-APPLE: movl $6, %r9d |
| ; CHECK-APPLE: xorl %r13d, %r13d |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq _params_in_reg2 |
| ; Setup second call with stored arguments. |
| ; CHECK-APPLE: movq %rbp, %rdi |
| ; CHECK-APPLE: movq %rbx, %rsi |
| ; CHECK-APPLE: movq %r15, %rdx |
| ; CHECK-APPLE: movq %r14, %rcx |
| ; CHECK-APPLE: movq 8(%rsp), %r8 |
| ; CHECK-APPLE: movq 16(%rsp), %r9 |
| ; CHECK-APPLE: movq 24(%rsp), %r13 |
| ; CHECK-APPLE: movq 32(%rsp), %r12 |
| ; CHECK-APPLE: callq _params_in_reg2 |
| ; CHECK-APPLE: addq $48, %rsp |
| ; CHECK-APPLE: popq %rbx |
| ; CHECK-APPLE: popq %r13 |
| ; CHECK-APPLE: popq %r14 |
| ; CHECK-APPLE: popq %r15 |
| ; CHECK-APPLE: popq %rbp |
| define swiftcc void @params_in_reg(i64, i64, i64, i64, i64, i64, i8* swiftself, %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, i8* swiftself 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, i8* swiftself %6, %swift_error** nocapture swifterror %err) |
| ret void |
| } |
| declare swiftcc void @params_in_reg2(i64, i64, i64, i64, i64, i64, i8* swiftself, %swift_error** nocapture swifterror %err) |
| |
| ; CHECK-APPLE-LABEL: params_and_return_in_reg |
| ; CHECK-APPLE: pushq %rbp |
| ; CHECK-APPLE: pushq %r15 |
| ; CHECK-APPLE: pushq %r14 |
| ; CHECK-APPLE: pushq %r13 |
| ; CHECK-APPLE: pushq %rbx |
| ; CHECK-APPLE: subq $48, %rsp |
| ; Store arguments. |
| ; CHECK-APPLE: movq %r12, %r14 |
| ; CHECK-APPLE: movq %r13, (%rsp) |
| ; CHECK-APPLE: movq %r9, 32(%rsp) |
| ; CHECK-APPLE: movq %r8, 24(%rsp) |
| ; CHECK-APPLE: movq %rcx, 16(%rsp) |
| ; CHECK-APPLE: movq %rdx, %r15 |
| ; CHECK-APPLE: movq %rsi, %rbx |
| ; CHECK-APPLE: movq %rdi, %rbp |
| ; Setup call that clobbers all argument registers. |
| ; CHECK-APPLE: movl $1, %edi |
| ; CHECK-APPLE: movl $2, %esi |
| ; CHECK-APPLE: movl $3, %edx |
| ; CHECK-APPLE: movl $4, %ecx |
| ; CHECK-APPLE: movl $5, %r8d |
| ; CHECK-APPLE: movl $6, %r9d |
| ; CHECK-APPLE: xorl %r13d, %r13d |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq _params_in_reg2 |
| ; Store error_ptr_ref for later use. |
| ; CHECK-APPLE: movq %r12, 8(%rsp) |
| ; Restore original arguments. |
| ; CHECK-APPLE: movq %rbp, %rdi |
| ; CHECK-APPLE: movq %rbx, %rsi |
| ; CHECK-APPLE: movq %r15, %rdx |
| ; CHECK-APPLE: movq 16(%rsp), %rcx |
| ; CHECK-APPLE: movq 24(%rsp), %r8 |
| ; CHECK-APPLE: movq 32(%rsp), %r9 |
| ; CHECK-APPLE: movq (%rsp), %r13 |
| ; CHECK-APPLE: movq %r14, %r12 |
| ; CHECK-APPLE: callq _params_and_return_in_reg2 |
| ; Store return values in callee saved registers. |
| ; CHECK-APPLE: movq %rax, %rbx |
| ; CHECK-APPLE: movq %rdx, %rbp |
| ; CHECK-APPLE: movq %rcx, %r15 |
| ; CHECK-APPLE: movq %r8, %r14 |
| ; Store the swifterror return value (%err). |
| ; CHECK-APPLE: movq %r12, (%rsp) |
| ; Setup call. |
| ; CHECK-APPLE: movl $1, %edi |
| ; CHECK-APPLE: movl $2, %esi |
| ; CHECK-APPLE: movl $3, %edx |
| ; CHECK-APPLE: movl $4, %ecx |
| ; CHECK-APPLE: movl $5, %r8d |
| ; CHECK-APPLE: movl $6, %r9d |
| ; CHECK-APPLE: xorl %r13d, %r13d |
| ; Restore the swifterror value of error_ptr_ref. |
| ; CHECK-APPLE: movq 8(%rsp), %r12 |
| ; CHECK-APPLE: callq _params_in_reg2 |
| ; Restore the return values of _params_and_return_in_reg2. |
| ; CHECK-APPLE: movq %rbx, %rax |
| ; CHECK-APPLE: movq %rbp, %rdx |
| ; CHECK-APPLE: movq %r15, %rcx |
| ; CHECK-APPLE: movq %r14, %r8 |
| ; Restore the swiferror value of err. |
| ; CHECK-APPLE: movq (%rsp), %r12 |
| ; CHECK-APPLE: addq $48, %rsp |
| ; CHECK-APPLE: popq %rbx |
| ; CHECK-APPLE: popq %r13 |
| ; CHECK-APPLE: popq %r14 |
| ; CHECK-APPLE: popq %r15 |
| ; CHECK-APPLE: popq %rbp |
| define swiftcc { i64, i64, i64, i64} @params_and_return_in_reg(i64, i64, i64, i64, i64, i64, i8* swiftself, %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, i8* swiftself null, %swift_error** nocapture swifterror %error_ptr_ref) |
| %val = call swiftcc { i64, i64, i64, i64 } @params_and_return_in_reg2(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5, i8* swiftself %6, %swift_error** nocapture swifterror %err) |
| call swiftcc void @params_in_reg2(i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i8* swiftself null, %swift_error** nocapture swifterror %error_ptr_ref) |
| ret { i64, i64, i64, i64 }%val |
| } |
| |
| declare swiftcc { i64, i64, i64, i64 } @params_and_return_in_reg2(i64, i64, i64, i64, i64, i64, i8* swiftself, %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-APPLE: tailcall_from_swifterror: |
| ; CHECK-APPLE-NOT: jmp _acallee |
| ; CHECK-APPLE: callq _acallee |
| |
| define swiftcc void @tailcall_from_swifterror(%swift_error** swifterror %error_ptr_ref) { |
| entry: |
| tail call void @acallee(i8* null) |
| ret void |
| } |
| |
| ; Make sure we don't crash on this function during -O0. |
| ; We used to crash because we would insert an IMPLICIT_DEF for the swifterror at |
| ; beginning of the machine basic block but did not inform FastISel of the |
| ; inserted instruction. When computing the InsertPoint in the entry block |
| ; FastISel would choose an insertion point before the IMPLICIT_DEF causing a |
| ; crash later on. |
| declare hidden swiftcc i8* @testFunA() |
| |
| %TSb = type <{ i1 }> |
| |
| define swiftcc void @dontCrash() { |
| entry: |
| %swifterror = alloca swifterror %swift_error*, align 8 |
| store %swift_error* null, %swift_error** %swifterror, align 8 |
| %a = call i8* @testFunA() |
| %b = bitcast i8* %a to %TSb* |
| %._value = getelementptr inbounds %TSb, %TSb* %b, i32 0, i32 0 |
| %c = load i1, i1* %._value, align 1 |
| br i1 %c, label %trueBB, label %falseBB |
| |
| trueBB: |
| ret void |
| |
| falseBB: |
| ret void |
| } |
| |
| |
| declare swiftcc void @foo2(%swift_error** swifterror) |
| |
| ; Make sure we properly assign registers during fast-isel. |
| ; CHECK-O0-LABEL: testAssign |
| ; CHECK-O0: pushq %r12 |
| ; CHECK-O0: xorl [[ZERO:%[a-z0-9]+]], [[ZERO]] |
| ; CHECK-O0: movl [[ZERO]], %r12d |
| ; CHECK-O0: callq _foo2 |
| ; CHECK-O0: movq %r12, [[SLOT:[-a-z0-9\(\)\%]*]] |
| ; |
| ; CHECK-O0: movq [[SLOT]], %rax |
| ; CHECK-O0: popq %r12 |
| ; CHECK-O0: retq |
| |
| ; CHECK-APPLE-LABEL: testAssign |
| ; CHECK-APPLE: pushq %r12 |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: callq _foo2 |
| ; CHECK-APPLE: movq %r12, %rax |
| ; CHECK-APPLE: popq %r12 |
| ; CHECK-APPLE: retq |
| |
| 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 |
| } |
| |
| ; CHECK-O0-LABEL: testAssign2 |
| ; CHECK-O0: movq %r12, [[SLOT:[-a-z0-9\(\)\%]*]] |
| ; CHECK-O0: jmp |
| ; CHECK-O0: movq [[SLOT]], %r12 |
| ; CHECK-O0-NEXT: movq %r12, %rax |
| ; CHECK-O0-NEXT: retq |
| |
| ; CHECK-APPLE-LABEL: testAssign2 |
| ; CHECK-APPLE: movq %r12, %rax |
| ; CHECK-APPLE: retq |
| define swiftcc %swift_error* @testAssign2(i8* %error_ref, %swift_error** swifterror %err) { |
| entry: |
| br label %a |
| |
| a: |
| %error = load %swift_error*, %swift_error** %err |
| ret %swift_error* %error |
| } |
| |
| ; CHECK-O0-LABEL: testAssign3 |
| ; CHECK-O0: callq _foo2 |
| ; CHECK-O0: movq %r12, [[SLOT:[-a-z0-9\(\)\%]*]] |
| ; CHECK-O0: movq [[SLOT]], %r12 |
| ; CHECK-O0-NEXT: movq %r12, %rax |
| ; CHECK-O0-NEXT: popq %rcx |
| ; CHECK-O0-NEXT: retq |
| |
| ; CHECK-APPLE-LABEL: testAssign3 |
| ; CHECK-APPLE: callq _foo2 |
| ; CHECK-APPLE: movq %r12, %rax |
| ; CHECK-APPLE: retq |
| |
| define swiftcc %swift_error* @testAssign3(i8* %error_ref, %swift_error** swifterror %err) { |
| entry: |
| call swiftcc void @foo2(%swift_error** swifterror %err) |
| br label %a |
| |
| a: |
| %error = load %swift_error*, %swift_error** %err |
| ret %swift_error* %error |
| } |
| |
| |
| ; CHECK-O0-LABEL: testAssign4 |
| ; CHECK-O0: callq _foo2 |
| ; CHECK-O0: xorl %eax, %eax |
| ; CHECK-O0: ## kill: def $rax killed $eax |
| ; CHECK-O0: movq %rax, [[SLOT:[-a-z0-9\(\)\%]*]] |
| ; CHECK-O0: movq [[SLOT]], %r12 |
| ; CHECK-O0-NEXT: movq %r12, %rax |
| ; CHECK-O0-NEXT: popq %rcx |
| ; CHECK-O0-NEXT: retq |
| |
| ; CHECK-APPLE-LABEL: testAssign4 |
| ; CHECK-APPLE: callq _foo2 |
| ; CHECK-APPLE: xorl %eax, %eax |
| ; CHECK-APPLE: xorl %r12d, %r12d |
| ; CHECK-APPLE: retq |
| |
| define swiftcc %swift_error* @testAssign4(i8* %error_ref, %swift_error** swifterror %err) { |
| entry: |
| call swiftcc void @foo2(%swift_error** swifterror %err) |
| store %swift_error* null, %swift_error** %err |
| br label %a |
| |
| a: |
| %error = load %swift_error*, %swift_error** %err |
| ret %swift_error* %error |
| } |
