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llvm-project/clang/test/Analysis/builtin_signbit.cpp

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Fix __builtin_signbit for ppcf128 type Function__builtin_signbit returns wrong value for type ppcf128 on big endian machines. This patch fixes how value is generated in that case. Patch by Aleksandar Beserminji. Differential Revision: http://reviews.llvm.org/D14149 llvm-svn: 252307
2015-11-06 22:52:46 +08:00
// RUN: %clang -target powerpc-linux-gnu -emit-llvm -S -O0 %s -o - | FileCheck %s --check-prefix=CHECK-BE --check-prefix=CHECK
// RUN: %clang -target powerpc64-linux-gnu -emit-llvm -S -O0 %s -o - | FileCheck %s --check-prefix=CHECK-BE --check-prefix=CHECK
// RUN: %clang -target powerpc64le-linux-gnu -emit-llvm -S -O0 %s -o - | FileCheck %s --check-prefix=CHECK-LE --check-prefix=CHECK
bool b;
double d = -1.0;
long double ld = -1.0L;
void test_signbit()
{
b = __builtin_signbit(1.0L);
// CHECK: i128
// CHECK-LE-NOT: lshr
// CHECK-BE: lshr
// CHECK: bitcast
// CHECK: ppc_fp128
b = __builtin_signbit(ld);
// CHECK: bitcast
// CHECK: ppc_fp128
// CHECK-LE-NOT: lshr
// CHECK-BE: lshr
b = __builtin_signbitf(1.0);
// CHECK: store i8 0
b = __builtin_signbitf(d);
// CHECK: bitcast
// CHECK-LE-NOT: lshr
// CHECK-BE-NOT: lshr
b = __builtin_signbitl(1.0L);
// CHECK: i128
// CHECK-LE-NOT: lshr
// CHECK-BE: lshr
// CHECK: bitcast
// CHECK: ppc_fp128
b = __builtin_signbitl(ld);
// CHECK: bitcast
// CHECK: ppc_fp128
// CHECK-LE-NOT: lshr
// CHECK-BE: lshr
}