e0ac46e69d
This reverts commit d618f1c3b12effd0c2bdb7d02108d3551f389d3d. This commit wasn't reviewed ahead of time and significant concerns were raised immediately after it landed. According to our developer policy this warrants immediate revert of the commit. https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy Differential Revision: https://reviews.llvm.org/D155509
69 lines
1.6 KiB
C
69 lines
1.6 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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int printf(const char *, ...);
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void exit(int);
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float frexpf(float, int*);
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double frexp(double, int*);
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long double frexpl(long double, int*);
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// CHECK: declare i32 @printf(ptr noundef, ...)
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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 ptr @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 noundef %
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// CHECK-NOT: readnone
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// CHECK: call float @frexpf(float noundef %
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// CHECK-NOT: readnone
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// CHECK: call double @frexpl(double noundef %
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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 noundef %
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// CHECK-NOT: readnone
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// CHECK: call float @modff(float noundef %
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// CHECK-NOT: readnone
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// CHECK: call double @modfl(double noundef %
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// CHECK-NOT: readnone
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//
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// CHECK: call double @remquo(double noundef %
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// CHECK-NOT: readnone
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// CHECK: call float @remquof(float noundef %
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// CHECK-NOT: readnone
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// CHECK: call double @remquol(double noundef %
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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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frexp(x, &e);
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frexpf(x, &e);
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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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