45 lines
1.5 KiB
C
45 lines
1.5 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{{.*}} void @fred
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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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// Generate tbaa for the load of Index:
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// CHECK: load i32, i32* %Index{{.*}}tbaa
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// But no tbaa for the two stores:
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// CHECK: %uw[[UW1:[0-9]*]] = getelementptr
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// CHECK: store{{.*}}%uw[[UW1]]
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// CHECK: tbaa ![[OCPATH:[0-9]+]]
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// There will be a load after the store, and it will use tbaa. Make sure
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// the check-not above doesn't find it:
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// CHECK: load
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Tmp[*Index][0].uw = Arr[*Index][0] * Num;
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// CHECK: %uw[[UW2:[0-9]*]] = getelementptr
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// CHECK: store{{.*}}%uw[[UW2]]
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// CHECK: tbaa ![[OCPATH]]
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Tmp[*Index][1].uw = Arr[*Index][1] * Num;
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// Same here, don't generate tbaa for the loads:
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// CHECK: %uh[[UH1:[0-9]*]] = bitcast %union.vect32
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// CHECK: %arrayidx[[AX1:[0-9]*]] = getelementptr{{.*}}%uh[[UH1]]
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// CHECK: load i16, i16* %arrayidx[[AX1]]
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// CHECK: tbaa ![[OCPATH]]
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// CHECK: store
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Vec[0] = Tmp[*Index][0].uh[1];
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// CHECK: %uh[[UH2:[0-9]*]] = bitcast %union.vect32
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// CHECK: %arrayidx[[AX2:[0-9]*]] = getelementptr{{.*}}%uh[[UH2]]
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// CHECK: load i16, i16* %arrayidx[[AX2]]
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// CHECK: tbaa ![[OCPATH]]
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// CHECK: store
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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: ![[OCPATH]] = !{![[CHAR]], ![[CHAR]], i64 0}
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