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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
12 lines
427 B
C
12 lines
427 B
C
// RUN: %clang_cc1 %s -emit-llvm -o - -triple powerpc64-linux-gnu | FileCheck %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple powerpc64le-linux-gnu | FileCheck %s
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int test(long double x) { return __builtin_signbitl(x); }
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// CHECK-LABEL: define signext i32 @test(ppc_fp128 %x)
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// CHECK: bitcast ppc_fp128 %{{.*}} to i128
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// CHECK: trunc i128 %{{.*}} to i64
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// CHECK: icmp slt i64 %{{.*}}, 0
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// CHECK: zext i1 %{{.*}} to i32
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