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52 lines
2.1 KiB
Plaintext
52 lines
2.1 KiB
Plaintext
// RUN: %clang_cc1 -fcuda-is-device \
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// RUN: -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
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// RUN: FileCheck -check-prefixes=NOFTZ,PTXNOFTZ %s
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// RUN: %clang_cc1 -fcuda-is-device -fdenormal-fp-math-f32=ieee \
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// RUN: -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
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// RUN: FileCheck -check-prefixes=NOFTZ,PTXNOFTZ %s
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// RUN: %clang_cc1 -fcuda-is-device -fdenormal-fp-math-f32=preserve-sign \
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// RUN: -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
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// RUN: FileCheck -check-prefixes=FTZ,PTXFTZ %s
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// RUN: %clang_cc1 -fcuda-is-device -x hip \
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// RUN: -triple amdgcn-amd-amdhsa -target-cpu gfx900 -emit-llvm -o - %s | \
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// RUN: FileCheck -check-prefix=NOFTZ %s
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// RUN: %clang_cc1 -fcuda-is-device -x hip \
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// RUN: -triple amdgcn-amd-amdhsa -target-cpu gfx900 -fdenormal-fp-math-f32=ieee -emit-llvm -o - %s | \
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// RUN: FileCheck -check-prefix=NOFTZ %s
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// RUN: %clang_cc1 -fcuda-is-device -x hip -fdenormal-fp-math-f32=preserve-sign \
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// RUN: -triple amdgcn-amd-amdhsa -target-cpu gfx900 -emit-llvm -o - %s | \
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// RUN: FileCheck -check-prefix=FTZ %s
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#include "Inputs/cuda.h"
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// Checks that device function calls get emitted with the denormal_fpenv
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// attribute set when we compile CUDA device code with
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// -fdenormal-fp-math-f32. Further, check that we reflect the presence or
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// absence of -fgpu-flush-denormals-to-zero in a module flag.
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// AMDGCN targets always have f64/f16 denormals enabled.
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//
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// AMDGCN targets without fast FMAF (e.g. gfx803) always have f32 denormal
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// flushing by default.
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//
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// For AMDGCN target with fast FMAF (e.g. gfx900), it has ieee denormals by
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// default and preserve-sign when there with the option
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// -fgpu-flush-denormals-to-zero.
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// CHECK-LABEL: define void @foo() #0
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extern "C" __device__ void foo() {}
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// FTZ: attributes #0 = {{.*}} denormal_fpenv(float: preservesign)
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// NOFTZ-NOT: denormal_fpenv
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// PTXFTZ:!llvm.module.flags = !{{{.*}}[[MODFLAG:![0-9]+]]}
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// PTXFTZ:[[MODFLAG]] = !{i32 4, !"nvvm-reflect-ftz", i32 1}
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// PTXNOFTZ:!llvm.module.flags = !{{{.*}}[[MODFLAG:![0-9]+]]}
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// PTXNOFTZ:[[MODFLAG]] = !{i32 4, !"nvvm-reflect-ftz", i32 0}
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