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353 lines
11 KiB
353 lines
11 KiB
; RUN: llc < %s -mtriple=s390x-linux-gnu -disable-block-placement | FileCheck %s
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; RUN: llc < %s -O0 -mtriple=s390x-linux-gnu -disable-block-placement | FileCheck --check-prefix=CHECK-O0 %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: lghi %r2, 16
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; CHECK: brasl %r14, malloc
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; CHECK: mvi 8(%r2), 1
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; CHECK: lgr %r9, %r2
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; CHECK-O0-LABEL: foo:
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; CHECK-O0: lghi %r2, 16
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; CHECK-O0: brasl %r14, malloc
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; CHECK-O0: lgr [[T0:%r[0-9]+]], %r2
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; CHECK-O0: mvi 8(%r2), 1
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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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; Make a copy of error_ref because r2 is getting clobbered
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; CHECK: lgr %r[[REG1:[0-9]+]], %r2
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; CHECK: lghi %r9, 0
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; CHECK: brasl %r14, foo
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; CHECK: %r2, %r9
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; CHECK: jlh
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; Access part of the error object and save it to error_ref
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; CHECK: lb %r[[REG2:[0-9]+]], 8(%r2)
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; CHECK: stc %r[[REG2]], 0(%r[[REG1]])
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; CHECK: brasl %r14, free
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; CHECK-O0-LABEL: caller:
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; CHECK-O0: lghi %r9, 0
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; CHECK-O0: brasl %r14, foo
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; CHECK-O0: cghi %r9, 0
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; CHECK-O0: jlh
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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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; Make a copy of error_ref because r2 is getting clobbered
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; CHECK: lgr %r[[REG1:[0-9]+]], %r2
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; CHECK: lghi %r9, 0
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; CHECK: brasl %r14, foo
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; CHECK: cgijlh %r9, 0,
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; CHECK: ceb %f0,
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; CHECK: jnh
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; Access part of the error object and save it to error_ref
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; CHECK: lb %r[[REG2:[0-9]+]], 8(%r9)
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; CHECK: stc %r[[REG2]], 0(%r[[REG1]])
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; CHECK: lgr %r2, %r9
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; CHECK: brasl %r14, free
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; CHECK-O0-LABEL: caller2:
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; CHECK-O0: lghi %r9, 0
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; CHECK-O0: brasl %r14, foo
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; CHECK-O0: cghi %r9, 0
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; CHECK-O0: jlh
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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: cije %r2, 0
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; CHECK: lghi %r2, 16
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; CHECK: brasl %r14, malloc
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; CHECK: mvi 8(%r2), 1
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; CHECK: lgr %r9, %r2
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; CHECK-NOT: %r9
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; CHECK: br %r14
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; CHECK-O0-LABEL: foo_if:
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; spill to stack
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; CHECK-O0: stg %r9, [[OFFS:[0-9]+]](%r15)
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; CHECK-O0: chi %r2, 0
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; CHECK-O0: je
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; CHECK-O0: lghi %r2, 16
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; CHECK-O0: brasl %r14, malloc
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; CHECK-O0: lgr %r9, %r2
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; CHECK-O0: mvi 8(%r2), 1
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; CHECK-O0: br %r14
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; reload from stack
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; CHECK-O0: lg %r9, [[OFFS]](%r15)
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; CHECK-O0: br %r14
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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: lr %r[[REG1:[0-9]+]], %r2
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; CHECK: cije %r[[REG1]], 0
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; CHECK: lghi %r2, 16
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; CHECK: brasl %r14, malloc
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; CHECK: mvi 8(%r2), 1
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; CHECK: ceb %f8,
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; CHECK: jnh
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; CHECK: lgr %r9, %r2
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; CHECK: br %r14
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; CHECK-O0-LABEL: foo_loop:
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; spill to stack
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; CHECK-O0: stg %r9, [[OFFS:[0-9]+]](%r15)
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; CHECK-O0: chi %r{{.*}}, 0
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; CHECK-O0: je
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; CHECK-O0: lghi %r2, 16
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; CHECK-O0: brasl %r14, malloc
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; CHECK-O0: lgr %r[[REG1:[0-9]+]], %r2
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; CHECK-O0: mvi 8(%r[[REG1]]), 1
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; CHECK-O0: jnh
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; reload from stack
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; CHECK-O0: lg %r9, [[OFFS:[0-9]+]](%r15)
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; CHECK-O0: br %r14
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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-DAG: lgr %r[[REG1:[0-9]+]], %r2
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; CHECK-DAG: lr %r[[REG2:[0-9]+]], %r3
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; CHECK: lghi %r2, 16
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; CHECK: brasl %r14, malloc
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; CHECK: mvi 8(%r2), 1
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; CHECK: st %r[[REG2]], 4(%r[[REG1]])
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; CHECK: lgr %r9, %r2
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; CHECK-NOT: %r9
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; CHECK: br %r14
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; CHECK-O0-LABEL: foo_sret:
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; spill sret to stack
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; CHECK-O0-DAG: stg %r2, [[OFFS1:[0-9]+]](%r15)
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; CHECK-O0-DAG: st %r3, [[OFFS2:[0-9]+]](%r15)
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; CHECK-O0: lghi %r2, 16
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; CHECK-O0: brasl %r14, malloc
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; CHECK-O0-DAG: lgr %r[[REG3:[0-9]+]], %r2
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; CHECK-O0-DAG: mvi 8(%r[[REG3]]), 1
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; CHECK-O0-DAG: lg %r[[REG1:[0-9]+]], [[OFFS1]](%r15)
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; CHECK-O0-DAG: lgr %r9, %r[[REG3]]
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; CHECK-O0-DAG: l %r[[REG2:[0-9]+]], [[OFFS2]](%r15)
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; CHECK-O0: st %r[[REG2]], 4(%r[[REG1]])
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; CHECK-O0: br %r14
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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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; Make a copy of error_ref because r2 is getting clobbered
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; CHECK: lgr %r[[REG1:[0-9]+]], %r2
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; CHECK: lhi %r3, 1
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; CHECK: lghi %r9, 0
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; CHECK: brasl %r14, foo_sret
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; CHECK: jlh
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; Access part of the error object and save it to error_ref
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; CHECK: lb %r0, 8(%r2)
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; CHECK: stc %r0, 0(%r[[REG1]])
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; CHECK: brasl %r14, free
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; CHECK-O0-LABEL: caller3:
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; CHECK-O0: lghi %r9, 0
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; CHECK-O0: lhi %r3, 1
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; CHECK-O0: brasl %r14, foo_sret
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; CHECK-O0: lgr {{.*}}, %r9
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; CHECK-O0: cghi %r9, 0
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; CHECK-O0: jlh
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; Access part of the error object and save it to error_ref
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; CHECK-O0: lb %r0, 8(%r{{.*}})
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; CHECK-O0: stc %r0, 0(%r{{.*}})
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; reload from stack
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; CHECK-O0: lg %r2, {{.*}}(%r15)
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; CHECK-O0: brasl %r14, 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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; This is a caller with multiple swifterror values, it calls "foo" twice, each
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; time with a different swifterror value, from "alloca swifterror".
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define float @caller_with_multiple_swifterror_values(i8* %error_ref, i8* %error_ref2) {
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; CHECK-LABEL: caller_with_multiple_swifterror_values:
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; CHECK-DAG: lgr %r[[REG1:[0-9]+]], %r2
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; CHECK-DAG: lgr %r[[REG2:[0-9]+]], %r3
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; The first swifterror value:
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; CHECK: lghi %r9, 0
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; CHECK: brasl %r14, foo
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; CHECK: ltgr %r2, %r9
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; CHECK: jlh
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; Access part of the error object and save it to error_ref
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; CHECK: lb %r0, 8(%r2)
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; CHECK: stc %r0, 0(%r[[REG1]])
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; CHECK: brasl %r14, free
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; The second swifterror value:
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; CHECK: lghi %r9, 0
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; CHECK: brasl %r14, foo
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; CHECK: ltgr %r2, %r9
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; CHECK: jlh
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; Access part of the error object and save it to error_ref
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; CHECK: lb %r0, 8(%r2)
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; CHECK: stc %r0, 0(%r[[REG2]])
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; CHECK: brasl %r14, free
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; CHECK-O0-LABEL: caller_with_multiple_swifterror_values:
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; The first swifterror value:
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; CHECK-O0: lghi %r9, 0
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; CHECK-O0: brasl %r14, foo
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; CHECK-O0: jlh
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; The second swifterror value:
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; CHECK-O0: lghi %r9, 0
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; CHECK-O0: brasl %r14, foo
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; CHECK-O0: jlh
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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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%error_ptr_ref2 = alloca swifterror %swift_error*
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store %swift_error* null, %swift_error** %error_ptr_ref2
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%call2 = call float @foo(%swift_error** swifterror %error_ptr_ref2)
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%error_from_foo2 = load %swift_error*, %swift_error** %error_ptr_ref2
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%had_error_from_foo2 = icmp ne %swift_error* %error_from_foo2, null
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%bitcast2 = bitcast %swift_error* %error_from_foo2 to i8*
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br i1 %had_error_from_foo2, label %handler2, label %cont2
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cont2:
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%v2 = getelementptr inbounds %swift_error, %swift_error* %error_from_foo2, i64 0, i32 1
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%t2 = load i8, i8* %v2
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store i8 %t2, i8* %error_ref2
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br label %handler2
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handler2:
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call void @free(i8* %bitcast2)
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ret float 1.0
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}
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