104 lines
4.1 KiB
LLVM
104 lines
4.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
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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: [[TMP1:%.*]] = getelementptr i8, ptr @b, i64 10
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; CHECK-NEXT: [[B_VAL:%.*]] = load i8, ptr [[TMP1]], align 1
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; CHECK-NEXT: [[TMP2:%.*]] = tail call i8 @UseLongDoubleUnsafely(i8 [[B_VAL]])
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; CHECK-NEXT: [[B_VAL1:%.*]] = load x86_fp80, ptr @b, align 16
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; CHECK-NEXT: [[TMP3:%.*]] = tail call x86_fp80 @UseLongDoubleSafely(x86_fp80 [[B_VAL1]])
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; CHECK-NEXT: [[TMP4:%.*]] = tail call x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval([[UNION_U:%.*]]) align 16 @b)
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; CHECK-NEXT: [[A_VAL:%.*]] = load i64, ptr @a, align 8
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; CHECK-NEXT: [[TMP5:%.*]] = call i64 @AccessPaddingOfStruct(i64 [[A_VAL]])
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; CHECK-NEXT: [[TMP6:%.*]] = call i64 @CaptureAStruct(ptr byval([[STRUCT_FOO:%.*]]) @a)
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; CHECK-NEXT: ret void
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;
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tail call i8 @UseLongDoubleUnsafely(ptr byval(%union.u) align 16 @b)
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tail call x86_fp80 @UseLongDoubleSafely(ptr byval(%union.u) align 16 @b)
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tail call x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval(%union.u) align 16 @b)
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call i64 @AccessPaddingOfStruct(ptr byval(%struct.Foo) @a)
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call i64 @CaptureAStruct(ptr byval(%struct.Foo) @a)
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ret void
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}
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define internal i8 @UseLongDoubleUnsafely(ptr byval(%union.u) align 16 %arg) {
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; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleUnsafely
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; CHECK-SAME: (i8 [[ARG_10_VAL:%.*]]) {
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; CHECK-NEXT: ret i8 [[ARG_10_VAL]]
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;
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%gep = getelementptr inbounds %struct.s, ptr %arg, i64 0, i32 2
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%result = load i8, ptr %gep
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ret i8 %result
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}
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define internal x86_fp80 @UseLongDoubleSafely(ptr byval(%union.u) align 16 %arg) {
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; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafely
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; CHECK-SAME: (x86_fp80 [[ARG_0_VAL:%.*]]) {
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; CHECK-NEXT: ret x86_fp80 [[ARG_0_VAL]]
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;
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%fp80 = load x86_fp80, ptr %arg
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ret x86_fp80 %fp80
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}
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define internal x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval(%union.u) align 16 %arg) {
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; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafelyNoPromotion
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; CHECK-SAME: (ptr byval([[UNION_U:%.*]]) align 16 [[ARG:%.*]]) {
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; CHECK-NEXT: [[IDX_SLOT:%.*]] = alloca i64, align 8
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; CHECK-NEXT: store i64 0, ptr [[IDX_SLOT]], align 8
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; CHECK-NEXT: [[IDX:%.*]] = load i64, ptr [[IDX_SLOT]], align 8
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; CHECK-NEXT: [[GEP_IDX:%.*]] = getelementptr inbounds [[UNION_U]], ptr [[ARG]], i64 [[IDX]], i32 0
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; CHECK-NEXT: [[FP80:%.*]] = load x86_fp80, ptr [[ARG]], align 16
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; CHECK-NEXT: ret x86_fp80 [[FP80]]
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;
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%idx_slot = alloca i64, align 8
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store i64 0, ptr %idx_slot, align 8
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%idx = load i64, ptr %idx_slot, align 8
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%gep_idx = getelementptr inbounds %union.u, ptr %arg, i64 %idx, i32 0 ; to protect from promotion
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%fp80 = load x86_fp80, ptr %arg
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ret x86_fp80 %fp80
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}
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define internal i64 @AccessPaddingOfStruct(ptr byval(%struct.Foo) %a) {
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; CHECK-LABEL: define {{[^@]+}}@AccessPaddingOfStruct
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; CHECK-SAME: (i64 [[A_0_VAL:%.*]]) {
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; CHECK-NEXT: ret i64 [[A_0_VAL]]
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;
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%v = load i64, ptr %a
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ret i64 %v
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}
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define internal i64 @CaptureAStruct(ptr byval(%struct.Foo) %a) {
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; CHECK-LABEL: define {{[^@]+}}@CaptureAStruct
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; CHECK-SAME: (ptr byval([[STRUCT_FOO:%.*]]) [[A:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A_PTR:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ null, [[ENTRY:%.*]] ], [ [[A]], [[LOOP]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = phi ptr [ [[A]], [[ENTRY]] ], [ [[TMP0]], [[LOOP]] ]
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; CHECK-NEXT: store ptr [[PHI]], ptr [[A_PTR]], align 8
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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 ptr
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br label %loop
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loop:
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%phi = phi ptr [ null, %entry ], [ %a, %loop ]
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%0 = phi ptr [ %a, %entry ], [ %0, %loop ]
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store ptr %phi, ptr %a_ptr
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br label %loop
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}
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