derek.holloway
7502bf64a4
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40 lines
2.2 KiB
C
40 lines
2.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t.cir.ll
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// RUN: FileCheck --input-file=%t.cir.ll %s -check-prefix=LLVM
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
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int test_float_isinf_sign(float x) {
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// CIR-LABEL: test_float_isinf_sign
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// CIR: %[[ARG:.*]] = cir.load align(4) %{{.*}} : !cir.ptr<!cir.float>, !cir.float
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// CIR: %[[IS_INF:.*]] = cir.is_fp_class %[[ARG]], fcInf : (!cir.float) -> !cir.bool
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// CIR: %[[IS_NEG:.*]] = cir.signbit %[[ARG]] : !cir.float -> !cir.bool
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// CIR: %[[C_0:.*]] = cir.const #cir.int<0> : !s32i
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// CIR: %[[C_1:.*]] = cir.const #cir.int<1> : !s32i
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// CIR: %[[C_m1:.*]] = cir.const #cir.int<-1> : !s32i
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// CIR: %[[SIGN:.*]] = cir.select if %[[IS_NEG]] then %[[C_m1]] else %[[C_1]] : (!cir.bool, !s32i, !s32i) -> !s32i
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// CIR: %[[RET:.*]] = cir.select if %[[IS_INF]] then %[[SIGN]] else %[[C_0]] : (!cir.bool, !s32i, !s32i) -> !s32i
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// CIR: cir.store %[[RET]], %{{.*}} : !s32i, !cir.ptr<!s32i>
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// LLVM-LABEL: test_float_isinf_sign
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// LLVM: %[[ARG:.*]] = load float, ptr %{{.*}}
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// LLVM: %[[IS_INF:.*]] = call i1 @llvm.is.fpclass.f32(float %[[ARG]], i32 516)
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// LLVM: %[[BITCAST:.*]] = bitcast float %[[ARG]] to i32
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// LLVM: %[[IS_NEG:.*]] = icmp slt i32 %[[BITCAST]], 0
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// LLVM: %[[SIGN:.*]] = select i1 %[[IS_NEG]], i32 -1, i32 1
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// LLVM: %[[RET:.*]] = select i1 %[[IS_INF]], i32 %[[SIGN]], i32 0
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// LLVM: store i32 %[[RET]], ptr %{{.*}}, align 4
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// OGCG-LABEL: test_float_isinf_sign
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// OGCG: %[[ARG:.*]] = load float, ptr %{{.*}}
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// OGCG: %[[ABS:.*]] = call float @llvm.fabs.f32(float %[[ARG]])
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// OGCG: %[[IS_INF:.*]] = fcmp oeq float %[[ABS]], +inf
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// OGCG: %[[BITCAST:.*]] = bitcast float %[[ARG]] to i32
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// OGCG: %[[IS_NEG:.*]] = icmp slt i32 %[[BITCAST]], 0
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// OGCG: %[[SIGN:.*]] = select i1 %[[IS_NEG]], i32 -1, i32 1
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// OGCG: %[[RET:.*]] = select i1 %[[IS_INF]], i32 %[[SIGN]], i32 0
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// OGCG: ret i32 %[[RET]]
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return __builtin_isinf_sign(x);
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}
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