forked from OSchip/llvm-project
132 lines
5.6 KiB
C
132 lines
5.6 KiB
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
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// CHECK-LABEL: define {{[^@]+}}@test1
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// CHECK-SAME: (i32* [[A:%.*]]) #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[A_ADDR:%.*]] = alloca i32*, align 8
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// CHECK-NEXT: store i32* [[A]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP0:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[TMP0]] to i8*
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// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 32, i64 0) ]
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// CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
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// CHECK-NEXT: store i32* [[TMP2]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP3:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[TMP3]], i64 0
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// CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[ARRAYIDX]], align 4
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// CHECK-NEXT: ret i32 [[TMP4]]
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//
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int test1(int *a) {
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a = __builtin_assume_aligned(a, 32, 0ull);
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return a[0];
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}
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// CHECK-LABEL: define {{[^@]+}}@test2
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// CHECK-SAME: (i32* [[A:%.*]]) #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[A_ADDR:%.*]] = alloca i32*, align 8
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// CHECK-NEXT: store i32* [[A]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP0:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[TMP0]] to i8*
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// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 32, i64 0) ]
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// CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
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// CHECK-NEXT: store i32* [[TMP2]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP3:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[TMP3]], i64 0
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// CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[ARRAYIDX]], align 4
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// CHECK-NEXT: ret i32 [[TMP4]]
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//
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int test2(int *a) {
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a = __builtin_assume_aligned(a, 32, 0);
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return a[0];
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}
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// CHECK-LABEL: define {{[^@]+}}@test3
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// CHECK-SAME: (i32* [[A:%.*]]) #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[A_ADDR:%.*]] = alloca i32*, align 8
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// CHECK-NEXT: store i32* [[A]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP0:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[TMP0]] to i8*
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// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 32) ]
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// CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
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// CHECK-NEXT: store i32* [[TMP2]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP3:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[TMP3]], i64 0
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// CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[ARRAYIDX]], align 4
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// CHECK-NEXT: ret i32 [[TMP4]]
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//
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int test3(int *a) {
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a = __builtin_assume_aligned(a, 32);
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return a[0];
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}
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// CHECK-LABEL: define {{[^@]+}}@test4
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// CHECK-SAME: (i32* [[A:%.*]], i32 [[B:%.*]]) #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[A_ADDR:%.*]] = alloca i32*, align 8
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// CHECK-NEXT: [[B_ADDR:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32* [[A]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: store i32 [[B]], i32* [[B_ADDR]], align 4
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// CHECK-NEXT: [[TMP0:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[TMP0]] to i8*
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// CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* [[B_ADDR]], align 4
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// CHECK-NEXT: [[CONV:%.*]] = sext i32 [[TMP2]] to i64
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// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 32, i64 [[CONV]]) ]
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// CHECK-NEXT: [[TMP3:%.*]] = bitcast i8* [[TMP1]] to i32*
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// CHECK-NEXT: store i32* [[TMP3]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP4:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[TMP4]], i64 0
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// CHECK-NEXT: [[TMP5:%.*]] = load i32, i32* [[ARRAYIDX]], align 4
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// CHECK-NEXT: ret i32 [[TMP5]]
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//
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int test4(int *a, int b) {
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a = __builtin_assume_aligned(a, 32, b);
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return a[0];
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}
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int *m1() __attribute__((assume_aligned(64)));
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// CHECK-LABEL: define {{[^@]+}}@test5() #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[CALL:%.*]] = call align 64 i32* (...) @m1()
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[CALL]], align 4
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// CHECK-NEXT: ret i32 [[TMP0]]
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//
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int test5() {
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return *m1();
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}
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int *m2() __attribute__((assume_aligned(64, 12)));
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// CHECK-LABEL: define {{[^@]+}}@test6() #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[CALL:%.*]] = call i32* (...) @m2()
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// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i32* [[CALL]], i64 64, i64 12) ]
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[CALL]], align 4
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// CHECK-NEXT: ret i32 [[TMP0]]
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//
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int test6() {
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return *m2();
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}
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// CHECK-LABEL: define {{[^@]+}}@pr43638
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// CHECK-SAME: (i32* [[A:%.*]]) #0
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[A_ADDR:%.*]] = alloca i32*, align 8
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// CHECK-NEXT: store i32* [[A]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP0:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[TMP0]] to i8*
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// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 4294967296) ]
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// CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
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// CHECK-NEXT: store i32* [[TMP2]], i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[TMP3:%.*]] = load i32*, i32** [[A_ADDR]], align 8
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[TMP3]], i64 0
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// CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[ARRAYIDX]], align 4
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// CHECK-NEXT: ret i32 [[TMP4]]
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//
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int pr43638(int *a) {
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a = __builtin_assume_aligned(a, 4294967296);
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return a[0];
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}
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