61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
// REQUIRES: arm-registered-target
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// RUN: %clang_cc1 -triple arm-unknown-linux-gnueabi -emit-llvm -o - %s | FileCheck %s
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// CHECK: declare i32 @printf(i8*, ...)
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void f0() {
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printf("a\n");
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}
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// CHECK: call void @exit
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// CHECK: unreachable
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void f1() {
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exit(1);
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}
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// CHECK: call i8* @strstr{{.*}} [[NUW:#[0-9]+]]
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char* f2(char* a, char* b) {
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return __builtin_strstr(a, b);
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}
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// frexp is NOT readnone. It writes to its pointer argument.
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// <rdar://problem/10070234>
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//
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// CHECK: f3
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// CHECK: call double @frexp(double %
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// CHECK-NOT: readnone
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// CHECK: call float @frexpf(float %
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// CHECK-NOT: readnone
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// CHECK: call double @frexpl(double %
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// CHECK-NOT: readnone
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//
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// Same thing for modf and friends.
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//
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// CHECK: call double @modf(double %
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// CHECK-NOT: readnone
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// CHECK: call float @modff(float %
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// CHECK-NOT: readnone
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// CHECK: call double @modfl(double %
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// CHECK-NOT: readnone
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//
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// CHECK: call double @remquo(double %
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// CHECK-NOT: readnone
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// CHECK: call float @remquof(float %
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// CHECK-NOT: readnone
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// CHECK: call double @remquol(double %
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// CHECK-NOT: readnone
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// CHECK: ret
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int f3(double x) {
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int e;
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__builtin_frexp(x, &e);
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__builtin_frexpf(x, &e);
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__builtin_frexpl(x, &e);
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__builtin_modf(x, &e);
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__builtin_modff(x, &e);
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__builtin_modfl(x, &e);
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__builtin_remquo(x, x, &e);
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__builtin_remquof(x, x, &e);
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__builtin_remquol(x, x, &e);
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return e;
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}
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// CHECK: attributes [[NUW]] = { nounwind{{.*}} }
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