derek.holloway
7502bf64a4
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66 lines
3.0 KiB
C
66 lines
3.0 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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// Validate that volatile _Complex loads and stores are generated
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// properly, including their alignment (even when overaligned).
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//
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// This test assumes that floats are 32-bit aligned and doubles are
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// 64-bit aligned, and uses x86-64 as a target that should have this
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// property.
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volatile _Complex float cf;
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volatile _Complex double cd;
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volatile _Complex float cf32 __attribute__((aligned(32)));
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volatile _Complex double cd32 __attribute__((aligned(32)));
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// CHECK-LABEL: define{{.*}} void @test_cf()
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void test_cf(void) {
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// CHECK: load volatile float, ptr @cf, align 4
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// CHECK-NEXT: load volatile float, ptr getelementptr inbounds nuw (i8, ptr @cf, i64 4), align 4
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(void)(cf);
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// CHECK-NEXT: [[R:%.*]] = load volatile float, ptr @cf, align 4
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// CHECK-NEXT: [[I:%.*]] = load volatile float, ptr getelementptr inbounds nuw (i8, ptr @cf, i64 4), align 4
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// CHECK-NEXT: store volatile float [[R]], ptr @cf, align 4
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// CHECK-NEXT: store volatile float [[I]], ptr getelementptr inbounds nuw (i8, ptr @cf, i64 4), align 4
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(void)(cf=cf);
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @test_cd()
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void test_cd(void) {
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// CHECK: load volatile double, ptr @cd, align 8
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// CHECK-NEXT: load volatile double, ptr getelementptr inbounds nuw (i8, ptr @cd, i64 8), align 8
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(void)(cd);
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// CHECK-NEXT: [[R:%.*]] = load volatile double, ptr @cd, align 8
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// CHECK-NEXT: [[I:%.*]] = load volatile double, ptr getelementptr inbounds nuw (i8, ptr @cd, i64 8), align 8
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// CHECK-NEXT: store volatile double [[R]], ptr @cd, align 8
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// CHECK-NEXT: store volatile double [[I]], ptr getelementptr inbounds nuw (i8, ptr @cd, i64 8), align 8
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(void)(cd=cd);
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @test_cf32()
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void test_cf32(void) {
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// CHECK: load volatile float, ptr @cf32, align 32
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// CHECK-NEXT: load volatile float, ptr getelementptr inbounds nuw (i8, ptr @cf32, i64 4), align 4
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(void)(cf32);
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// CHECK-NEXT: [[R:%.*]] = load volatile float, ptr @cf32, align 32
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// CHECK-NEXT: [[I:%.*]] = load volatile float, ptr getelementptr inbounds nuw (i8, ptr @cf32, i64 4), align 4
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// CHECK-NEXT: store volatile float [[R]], ptr @cf32, align 32
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// CHECK-NEXT: store volatile float [[I]], ptr getelementptr inbounds nuw (i8, ptr @cf32, i64 4), align 4
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(void)(cf32=cf32);
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @test_cd32()
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void test_cd32(void) {
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// CHECK: load volatile double, ptr @cd32, align 32
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// CHECK-NEXT: load volatile double, ptr getelementptr inbounds nuw (i8, ptr @cd32, i64 8), align 8
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(void)(cd32);
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// CHECK-NEXT: [[R:%.*]] = load volatile double, ptr @cd32, align 32
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// CHECK-NEXT: [[I:%.*]] = load volatile double, ptr getelementptr inbounds nuw (i8, ptr @cd32, i64 8), align 8
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// CHECK-NEXT: store volatile double [[R]], ptr @cd32, align 32
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// CHECK-NEXT: store volatile double [[I]], ptr getelementptr inbounds nuw (i8, ptr @cd32, i64 8), align 8
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(void)(cd32=cd32);
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// CHECK-NEXT: ret void
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}
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