c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
50 lines
2.9 KiB
C
50 lines
2.9 KiB
C
// RUN: %clang_cc1 %s -triple hexagon-unknown-elf -O2 -emit-llvm -o - | FileCheck %s
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typedef union __attribute__((aligned(4))) {
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unsigned short uh[2];
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unsigned uw;
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} vect32;
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void bar(vect32 p[][2]);
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// CHECK-LABEL: define dso_local void @fred
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// CHECK-SAME: (i32 noundef [[NUM:%.*]], ptr noundef writeonly captures(none) initializes((0, 8)) [[VEC:%.*]], ptr noundef readonly captures(none) [[INDEX:%.*]], ptr noundef readonly captures(none) [[ARR:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP:%.*]] = alloca [4 x [2 x %union.vect32]], align 8
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// CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[TMP]]) #[[ATTR3:[0-9]+]]
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[INDEX]], align 4, !tbaa [[TBAA2:![0-9]+]]
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [2 x i32], ptr [[ARR]], i32 [[TMP0]]
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2]]
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// CHECK-NEXT: [[MUL:%.*]] = mul i32 [[TMP1]], [[NUM]]
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// CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [4 x [2 x %union.vect32]], ptr [[TMP]], i32 0, i32 [[TMP0]]
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// CHECK-NEXT: store i32 [[MUL]], ptr [[ARRAYIDX2]], align 8, !tbaa [[TBAA6:![0-9]+]]
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// CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds [2 x i32], ptr [[ARR]], i32 [[TMP0]], i32 1
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// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[ARRAYIDX5]], align 4, !tbaa [[TBAA2]]
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// CHECK-NEXT: [[MUL6:%.*]] = mul i32 [[TMP2]], [[NUM]]
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// CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds [4 x [2 x %union.vect32]], ptr [[TMP]], i32 0, i32 [[TMP0]], i32 1
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// CHECK-NEXT: store i32 [[MUL6]], ptr [[ARRAYIDX8]], align 4, !tbaa [[TBAA6]]
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// CHECK-NEXT: [[TMP3:%.*]] = lshr i32 [[MUL]], 16
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// CHECK-NEXT: store i32 [[TMP3]], ptr [[VEC]], align 4, !tbaa [[TBAA2]]
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// CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[INDEX]], align 4, !tbaa [[TBAA2]]
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// CHECK-NEXT: [[ARRAYIDX14:%.*]] = getelementptr inbounds [4 x [2 x %union.vect32]], ptr [[TMP]], i32 0, i32 [[TMP4]], i32 1
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// CHECK-NEXT: [[ARRAYIDX15:%.*]] = getelementptr inbounds nuw i8, ptr [[ARRAYIDX14]], i32 2
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// CHECK-NEXT: [[TMP5:%.*]] = load i16, ptr [[ARRAYIDX15]], align 2, !tbaa [[TBAA6]]
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// CHECK-NEXT: [[CONV16:%.*]] = zext i16 [[TMP5]] to i32
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// CHECK-NEXT: [[ARRAYIDX17:%.*]] = getelementptr inbounds nuw i8, ptr [[VEC]], i32 4
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// CHECK-NEXT: store i32 [[CONV16]], ptr [[ARRAYIDX17]], align 4, !tbaa [[TBAA2]]
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// CHECK-NEXT: call void @bar(ptr noundef nonnull [[TMP]]) #[[ATTR3]]
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// CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[TMP]]) #[[ATTR3]]
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// CHECK-NEXT: ret void
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//
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void fred(unsigned Num, int Vec[2], int *Index, int Arr[4][2]) {
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vect32 Tmp[4][2];
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Tmp[*Index][0].uw = Arr[*Index][0] * Num;
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Tmp[*Index][1].uw = Arr[*Index][1] * Num;
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Vec[0] = Tmp[*Index][0].uh[1];
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Vec[1] = Tmp[*Index][1].uh[1];
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bar(Tmp);
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}
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// CHECK-DAG: [[CHAR:![0-9]+]] = !{!"omnipotent char"
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// CHECK-DAG: [[TBAA6]] = !{[[CHAR]], [[CHAR]], i64 0}
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