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
|
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 -fp-contract=fast | FileCheck %s -check-prefix=CHECK
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 -fp-contract=fast -enable-unsafe-fp-math | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-UNSAFE
; RUN: %if ptxas %{ llc < %s -march=nvptx64 -mcpu=sm_20 -fp-contract=fast | %ptxas-verify %}
; RUN: %if ptxas %{ llc < %s -march=nvptx64 -mcpu=sm_20 -fp-contract=fast -enable-unsafe-fp-math | %ptxas-verify %}
define ptx_device float @t1_f32(float %x, float %y, float %z,
float %u, float %v) {
; CHECK-UNSAFE: fma.rn.f32 %f{{[0-9]+}}, %f{{[0-9]+}}, %f{{[0-9]+}}, %f{{[0-9]+}};
; CHECK-UNSAFE: fma.rn.f32 %f{{[0-9]+}}, %f{{[0-9]+}}, %f{{[0-9]+}}, %f{{[0-9]+}};
; CHECK: ret;
%a = fmul float %x, %y
%b = fmul float %u, %v
%c = fadd float %a, %b
%d = fadd float %c, %z
ret float %d
}
define ptx_device double @t1_f64(double %x, double %y, double %z,
double %u, double %v) {
; CHECK-UNSAFE: fma.rn.f64 %fd{{[0-9]+}}, %fd{{[0-9]+}}, %fd{{[0-9]+}}, %fd{{[0-9]+}};
; CHECK-UNSAFE: fma.rn.f64 %fd{{[0-9]+}}, %fd{{[0-9]+}}, %fd{{[0-9]+}}, %fd{{[0-9]+}};
; CHECK: ret;
%a = fmul double %x, %y
%b = fmul double %u, %v
%c = fadd double %a, %b
%d = fadd double %c, %z
ret double %d
}
define double @two_choices(double %val1, double %val2) {
; CHECK-LABEL: two_choices(
; CHECK: mul.f64
; CHECK-NOT: mul.f64
; CHECK: fma.rn.f64
%1 = fmul double %val1, %val2
%2 = fmul double %1, %1
%3 = fadd double %1, %2
ret double %3
}
|
