102 lines
4.4 KiB
LLVM
102 lines
4.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
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; RUN: opt < %s -argpromotion -S | FileCheck %s
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; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%union.u = type { x86_fp80 }
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%struct.s = type { double, i16, i8, [5 x i8] }
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@b = internal global %struct.s { double 3.14, i16 9439, i8 25, [5 x i8] undef }, align 16
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%struct.Foo = type { i32, i64 }
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@a = internal global %struct.Foo { i32 1, i64 2 }, align 8
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define void @run() {
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; CHECK-LABEL: define {{[^@]+}}@run()
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call i8 @UseLongDoubleUnsafely(%union.u* byval(%union.u) align 16 bitcast (%struct.s* @b to %union.u*))
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; CHECK-NEXT: [[DOT0:%.*]] = getelementptr [[UNION_U:%.*]], %union.u* bitcast (%struct.s* @b to %union.u*), i32 0, i32 0
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; CHECK-NEXT: [[DOT0_VAL:%.*]] = load x86_fp80, x86_fp80* [[DOT0]]
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; CHECK-NEXT: [[TMP1:%.*]] = tail call x86_fp80 @UseLongDoubleSafely(x86_fp80 [[DOT0_VAL]])
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; CHECK-NEXT: [[TMP2:%.*]] = call i64 @AccessPaddingOfStruct(%struct.Foo* @a)
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; CHECK-NEXT: [[TMP3:%.*]] = call i64 @CaptureAStruct(%struct.Foo* @a)
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; CHECK-NEXT: ret void
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;
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entry:
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tail call i8 @UseLongDoubleUnsafely(%union.u* byval(%union.u) align 16 bitcast (%struct.s* @b to %union.u*))
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tail call x86_fp80 @UseLongDoubleSafely(%union.u* byval(%union.u) align 16 bitcast (%struct.s* @b to %union.u*))
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call i64 @AccessPaddingOfStruct(%struct.Foo* @a)
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call i64 @CaptureAStruct(%struct.Foo* @a)
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ret void
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}
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define internal i8 @UseLongDoubleUnsafely(%union.u* byval(%union.u) align 16 %arg) {
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; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleUnsafely
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; CHECK-SAME: (%union.u* byval(%union.u) align 16 [[ARG:%.*]])
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[BITCAST:%.*]] = bitcast %union.u* [[ARG]] to %struct.s*
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], %struct.s* [[BITCAST]], i64 0, i32 2
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; CHECK-NEXT: [[RESULT:%.*]] = load i8, i8* [[GEP]]
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; CHECK-NEXT: ret i8 [[RESULT]]
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;
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entry:
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%bitcast = bitcast %union.u* %arg to %struct.s*
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%gep = getelementptr inbounds %struct.s, %struct.s* %bitcast, i64 0, i32 2
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%result = load i8, i8* %gep
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ret i8 %result
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}
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define internal x86_fp80 @UseLongDoubleSafely(%union.u* byval(%union.u) align 16 %arg) {
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; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafely
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; CHECK-SAME: (x86_fp80 [[ARG_0:%.*]])
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; CHECK-NEXT: [[ARG:%.*]] = alloca [[UNION_U:%.*]], align 16
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; CHECK-NEXT: [[DOT0:%.*]] = getelementptr [[UNION_U]], %union.u* [[ARG]], i32 0, i32 0
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; CHECK-NEXT: store x86_fp80 [[ARG_0]], x86_fp80* [[DOT0]]
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[UNION_U]], %union.u* [[ARG]], i64 0, i32 0
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; CHECK-NEXT: [[FP80:%.*]] = load x86_fp80, x86_fp80* [[GEP]]
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; CHECK-NEXT: ret x86_fp80 [[FP80]]
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;
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%gep = getelementptr inbounds %union.u, %union.u* %arg, i64 0, i32 0
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%fp80 = load x86_fp80, x86_fp80* %gep
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ret x86_fp80 %fp80
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}
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define internal i64 @AccessPaddingOfStruct(%struct.Foo* byval(%struct.Foo) %a) {
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; CHECK-LABEL: define {{[^@]+}}@AccessPaddingOfStruct
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; CHECK-SAME: (%struct.Foo* byval(%struct.Foo) [[A:%.*]])
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; CHECK-NEXT: [[P:%.*]] = bitcast %struct.Foo* [[A]] to i64*
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; CHECK-NEXT: [[V:%.*]] = load i64, i64* [[P]]
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; CHECK-NEXT: ret i64 [[V]]
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;
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%p = bitcast %struct.Foo* %a to i64*
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%v = load i64, i64* %p
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ret i64 %v
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}
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define internal i64 @CaptureAStruct(%struct.Foo* byval(%struct.Foo) %a) {
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; CHECK-LABEL: define {{[^@]+}}@CaptureAStruct
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; CHECK-SAME: (%struct.Foo* byval(%struct.Foo) [[A:%.*]])
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A_PTR:%.*]] = alloca %struct.Foo*
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[PHI:%.*]] = phi %struct.Foo* [ null, [[ENTRY:%.*]] ], [ [[GEP:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = phi %struct.Foo* [ [[A]], [[ENTRY]] ], [ [[TMP0]], [[LOOP]] ]
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; CHECK-NEXT: store %struct.Foo* [[PHI]], %struct.Foo** [[A_PTR]]
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; CHECK-NEXT: [[GEP]] = getelementptr [[STRUCT_FOO:%.*]], %struct.Foo* [[A]], i64 0
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%a_ptr = alloca %struct.Foo*
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br label %loop
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loop:
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%phi = phi %struct.Foo* [ null, %entry ], [ %gep, %loop ]
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%0 = phi %struct.Foo* [ %a, %entry ], [ %0, %loop ]
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store %struct.Foo* %phi, %struct.Foo** %a_ptr
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%gep = getelementptr %struct.Foo, %struct.Foo* %a, i64 0
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br label %loop
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}
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