0f1b5f115a
ptxas is a proprietary compiler from Nvidia that can compile PTX to machine code (SASS). It has a lot of diagnostics to catch errors in PTX, which can be used to verify PTX output from llc. Set -DPXTAS_EXECUTABLE=/path/to/ptxas CMake option to enable it. If this option is not set, then ptxas is substituted to true which effectively disables all ptxas RUN lines. LLVM_PTXAS_EXECUTABLE environment variable takes precedence over the CMake option, and allows to override ptxas executable that is used for LIT without complete re-configuration. Differential Revision: https://reviews.llvm.org/D121727
17 lines
550 B
LLVM
17 lines
550 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
|
|
; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_20 | %ptxas-verify %}
|
|
|
|
define float @test(float %x) {
|
|
entry:
|
|
; CHECK: ex2.approx.ftz.f32 %f{{[0-9]+}}, %f{{[0-9]+}}
|
|
%0 = call float asm "ex2.approx.ftz.f32 $0, $1;", "=f,f"(float %x)
|
|
ret float %0
|
|
}
|
|
|
|
define i32 @foo(i1 signext %cond, i32 %a, i32 %b) #0 {
|
|
entry:
|
|
; CHECK: selp.b32 %r{{[0-9]+}}, %r{{[0-9]+}}, %r{{[0-9]+}}, %p{{[0-9]+}}
|
|
%0 = tail call i32 asm "selp.b32 $0, $1, $2, $3;", "=r,r,r,b"(i32 %a, i32 %b, i1 %cond)
|
|
ret i32 %0
|
|
}
|