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llvm-project/clang/test/CodeGen/ppc-signbit.c

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Implement __builtin_signbitl for PowerPC PowerPC uses the special PPC_FP128 type for long double on Linux, which is composed of two 64-bit doubles. The higher-order double (which contains the overall sign) comes first, and so the __builtin_signbitl implementation requires special handling to extract the sign bit. Fixes PR20691. llvm-svn: 216341
2014-08-24 11:47:06 +08:00
// RUN: %clang_cc1 %s -emit-llvm -o - -triple powerpc64-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -emit-llvm -o - -triple powerpc64le-linux-gnu | FileCheck %s
int test(long double x) { return __builtin_signbitl(x); }
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK-LABEL: define signext i32 @test(ppc_fp128 %x)
Implement __builtin_signbitl for PowerPC PowerPC uses the special PPC_FP128 type for long double on Linux, which is composed of two 64-bit doubles. The higher-order double (which contains the overall sign) comes first, and so the __builtin_signbitl implementation requires special handling to extract the sign bit. Fixes PR20691. llvm-svn: 216341
2014-08-24 11:47:06 +08:00
// CHECK: bitcast ppc_fp128 %{{.*}} to i128
// CHECK: trunc i128 %{{.*}} to i64
// CHECK: icmp slt i64 %{{.*}}, 0
// CHECK: zext i1 %{{.*}} to i32