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39db5e1ed8
Conversion performed using the script at: https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34 These are only tests where no manual fixup was required.
33 lines
938 B
C
33 lines
938 B
C
// RUN: %clang_cc1 -triple x86_64 -emit-llvm -o - %s | FileCheck %s
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// Check that we don't generate unnecessary reloads.
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//
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// CHECK-LABEL: define{{.*}} void @f0()
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// CHECK: [[x_0:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[y_0:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 1, ptr [[x_0]]
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// CHECK-NEXT: store i32 1, ptr [[x_0]]
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// CHECK-NEXT: store i32 1, ptr [[y_0]]
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// CHECK: }
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void f0(void) {
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int x, y;
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x = 1;
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y = (x = 1);
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}
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// This used to test that we generate reloads for volatile access,
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// but that does not appear to be correct behavior for C.
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//
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// CHECK-LABEL: define{{.*}} void @f1()
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// CHECK: [[x_1:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[y_1:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store volatile i32 1, ptr [[x_1]]
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// CHECK-NEXT: store volatile i32 1, ptr [[x_1]]
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// CHECK-NEXT: store volatile i32 1, ptr [[y_1]]
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// CHECK: }
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void f1(void) {
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volatile int x, y;
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x = 1;
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y = (x = 1);
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}
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