derek.holloway
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74 lines
2.3 KiB
Plaintext
74 lines
2.3 KiB
Plaintext
// Check that when we link a bitcode module into a file using
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// -mlink-builtin-bitcode, we apply the same attributes to the functions in that
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// bitcode module as we apply to functions we generate.
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//
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// In particular, we check that ftz and unsafe-math are propagated into the
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// bitcode library as appropriate.
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// Build the bitcode library. This is not built in CUDA mode, otherwise it
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// might have incompatible attributes. This mirrors how libdevice is built.
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// RUN: %clang_cc1 -x c++ -fconvergent-functions -emit-llvm-bc -DLIB \
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// RUN: %s -o %t.bc -triple nvptx-unknown-unknown
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// RUN: %clang_cc1 -x cuda %s -emit-llvm -mlink-builtin-bitcode %t.bc -o - \
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// RUN: -fcuda-is-device -triple nvptx-unknown-unknown \
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// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=NOFTZ
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// RUN: %clang_cc1 -x cuda %s -emit-llvm -mlink-builtin-bitcode %t.bc \
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// RUN: -fdenormal-fp-math-f32=preserve-sign -o - \
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// RUN: -fcuda-is-device -triple nvptx-unknown-unknown \
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// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=FTZ
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// RUN: %clang_cc1 -x cuda %s -emit-llvm -mlink-builtin-bitcode %t.bc \
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// RUN: -fdenormal-fp-math-f32=preserve-sign -o - \
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// RUN: -fcuda-is-device -funsafe-math-optimizations -triple nvptx-unknown-unknown \
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// RUN: | FileCheck %s --check-prefix=CHECK
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#ifndef LIB
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#include "Inputs/cuda.h"
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#endif
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// Wrap everything in extern "C" so we don't have to worry about name mangling
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// in the IR.
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extern "C" {
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#ifdef LIB
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// This function is defined in the library and only declared in the main
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// compilation.
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void lib_fn() {}
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#else
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__device__ void lib_fn();
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__global__ void kernel() { lib_fn(); }
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#endif
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}
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// The kernel and lib function should have the same attributes.
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// CHECK: define{{.*}} void @kernel() [[kattr:#[0-9]+]]
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// CHECK: define internal void @lib_fn() [[fattr:#[0-9]+]]
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// FIXME: These -NOT checks do not work as intended and do not check on the same
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// line.
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// Check the attribute list for kernel.
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// NOFTZ-NOT: denormal_fpenv
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// CHECK: attributes [[kattr]] = {
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// CHECK-SAME: convergent
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// CHECK-SAME: norecurse
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// FTZ-SAME: denormal_fpenv(float: preservesign)
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// CHECK-SAME: "no-trapping-math"="true"
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// Check the attribute list for lib_fn.
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// CHECK: attributes [[fattr]] = {
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// CHECK-SAME: convergent
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// CHECK-NOT: norecurse
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// CHECK-SAME: "no-trapping-math"="true"
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