1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// RUN: %clang_cc1 -fcuda-is-device \
// RUN: -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefixes=NOFTZ,PTXNOFTZ %s
// RUN: %clang_cc1 -fcuda-is-device -fdenormal-fp-math-f32=ieee \
// RUN: -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefixes=NOFTZ,PTXNOFTZ %s
// RUN: %clang_cc1 -fcuda-is-device -fdenormal-fp-math-f32=preserve-sign \
// RUN: -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefixes=FTZ,PTXFTZ %s
// RUN: %clang_cc1 -fcuda-is-device -x hip \
// RUN: -triple amdgcn-amd-amdhsa -target-cpu gfx900 -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefix=NOFTZ %s
// RUN: %clang_cc1 -fcuda-is-device -x hip \
// RUN: -triple amdgcn-amd-amdhsa -target-cpu gfx900 -fdenormal-fp-math-f32=ieee -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefix=NOFTZ %s
// RUN: %clang_cc1 -fcuda-is-device -x hip -fdenormal-fp-math-f32=preserve-sign \
// RUN: -triple amdgcn-amd-amdhsa -target-cpu gfx900 -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefix=FTZ %s
#include "Inputs/cuda.h"
// Checks that device function calls get emitted with the "denormal-fp-math-f32"
// attribute set when we compile CUDA device code with
// -fdenormal-fp-math-f32. Further, check that we reflect the presence or
// absence of -fcuda-flush-denormals-to-zero in a module flag.
// AMDGCN targets always have f64/f16 denormals enabled.
//
// AMDGCN targets without fast FMAF (e.g. gfx803) always have f32 denormal
// flushing by default.
//
// For AMDGCN target with fast FMAF (e.g. gfx900), it has ieee denormals by
// default and preserve-sign when there with the option
// -fcuda-flush-denormals-to-zero.
// CHECK-LABEL: define void @foo() #0
extern "C" __device__ void foo() {}
// FTZ: attributes #0 = {{.*}} "denormal-fp-math-f32"="preserve-sign,preserve-sign"
// NOFTZ-NOT: "denormal-fp-math-f32"
// PTXFTZ:!llvm.module.flags = !{{{.*}}[[MODFLAG:![0-9]+]]}
// PTXFTZ:[[MODFLAG]] = !{i32 4, !"nvvm-reflect-ftz", i32 1}
// PTXNOFTZ:!llvm.module.flags = !{{{.*}}[[MODFLAG:![0-9]+]]}
// PTXNOFTZ:[[MODFLAG]] = !{i32 4, !"nvvm-reflect-ftz", i32 0}
|
