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authorCarlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au>2012-10-15 17:10:06 +1100
committerCarlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au>2012-10-15 17:10:06 +1100
commitbe1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch)
tree1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/CodeGen/builtin-attributes.c
parentc4626a62754862d20b41e8a46a3574264ea80e6d (diff)
parentf1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff)
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/CodeGen/builtin-attributes.c')
-rw-r--r--clang/test/CodeGen/builtin-attributes.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/clang/test/CodeGen/builtin-attributes.c b/clang/test/CodeGen/builtin-attributes.c
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+++ b/clang/test/CodeGen/builtin-attributes.c
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+// RUN: %clang_cc1 -triple arm-unknown-linux-gnueabi -emit-llvm -o - %s | FileCheck %s
+
+// CHECK: declare i32 @printf(i8*, ...)
+void f0() {
+ printf("a\n");
+}
+
+// CHECK: call void @exit
+// CHECK: unreachable
+void f1() {
+ exit(1);
+}
+
+// CHECK: call i8* @strstr{{.*}} nounwind
+char* f2(char* a, char* b) {
+ return __builtin_strstr(a, b);
+}
+
+// frexp is NOT readnone. It writes to its pointer argument.
+// <rdar://problem/10070234>
+//
+// CHECK: f3
+// CHECK: call double @frexp(double %
+// CHECK-NOT: readnone
+// CHECK: call float @frexpf(float %
+// CHECK-NOT: readnone
+// CHECK: call double @frexpl(double %
+// CHECK-NOT: readnone
+//
+// Same thing for modf and friends.
+//
+// CHECK: call double @modf(double %
+// CHECK-NOT: readnone
+// CHECK: call float @modff(float %
+// CHECK-NOT: readnone
+// CHECK: call double @modfl(double %
+// CHECK-NOT: readnone
+//
+// CHECK: call double @remquo(double %
+// CHECK-NOT: readnone
+// CHECK: call float @remquof(float %
+// CHECK-NOT: readnone
+// CHECK: call double @remquol(double %
+// CHECK-NOT: readnone
+// CHECK: ret
+int f3(double x) {
+ int e;
+ __builtin_frexp(x, &e);
+ __builtin_frexpf(x, &e);
+ __builtin_frexpl(x, &e);
+ __builtin_modf(x, &e);
+ __builtin_modff(x, &e);
+ __builtin_modfl(x, &e);
+ __builtin_remquo(x, x, &e);
+ __builtin_remquof(x, x, &e);
+ __builtin_remquol(x, x, &e);
+ return e;
+}