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
91 lines
2.4 KiB
LLVM
91 lines
2.4 KiB
LLVM
; RUN: llc < %s -march=nvptx | FileCheck %s --check-prefixes=CHECK,CHECK-NONAN
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; RUN: llc < %s -march=nvptx -mcpu=sm_80 | FileCheck %s --check-prefixes=CHECK,CHECK-NAN
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; RUN: %if ptxas %{ llc < %s -march=nvptx | %ptxas-verify %}
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; RUN: %if ptxas-11.0 %{ llc < %s -march=nvptx -mcpu=sm_80 | %ptxas-verify -arch=sm_80 %}
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; ---- minimum ----
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; CHECK-LABEL: minimum_half
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define half @minimum_half(half %a) #0 {
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; CHECK-NONAN: setp
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; CHECK-NONAN: selp.b16
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; CHECK-NAN: min.NaN.f16
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%p = fcmp ult half %a, 0.0
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%x = select i1 %p, half %a, half 0.0
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ret half %x
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}
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; CHECK-LABEL: minimum_float
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define float @minimum_float(float %a) #0 {
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; CHECK-NONAN: setp
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; CHECK-NONAN: selp.f32
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; CHECK-NAN: min.NaN.f32
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%p = fcmp ult float %a, 0.0
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%x = select i1 %p, float %a, float 0.0
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ret float %x
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}
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; CHECK-LABEL: minimum_double
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define double @minimum_double(double %a) #0 {
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; CHECK: setp
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; CHECK: selp.f64
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%p = fcmp ult double %a, 0.0
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%x = select i1 %p, double %a, double 0.0
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ret double %x
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}
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; CHECK-LABEL: minimum_v2half
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define <2 x half> @minimum_v2half(<2 x half> %a) #0 {
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; CHECK-NONAN-DAG: setp
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; CHECK-NONAN-DAG: setp
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; CHECK-NONAN-DAG: selp.b16
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; CHECK-NONAN-DAG: selp.b16
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; CHECK-NAN: min.NaN.f16x2
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%p = fcmp ult <2 x half> %a, zeroinitializer
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%x = select <2 x i1> %p, <2 x half> %a, <2 x half> zeroinitializer
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ret <2 x half> %x
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}
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; ---- maximum ----
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; CHECK-LABEL: maximum_half
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define half @maximum_half(half %a) #0 {
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; CHECK-NONAN: setp
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; CHECK-NONAN: selp.b16
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; CHECK-NAN: max.NaN.f16
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%p = fcmp ugt half %a, 0.0
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%x = select i1 %p, half %a, half 0.0
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ret half %x
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}
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; CHECK-LABEL: maximum_float
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define float @maximum_float(float %a) #0 {
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; CHECK-NONAN: setp
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; CHECK-NONAN: selp.f32
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; CHECK-NAN: max.NaN.f32
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%p = fcmp ugt float %a, 0.0
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%x = select i1 %p, float %a, float 0.0
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ret float %x
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}
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; CHECK-LABEL: maximum_double
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define double @maximum_double(double %a) #0 {
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; CHECK: setp
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; CHECK: selp.f64
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%p = fcmp ugt double %a, 0.0
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%x = select i1 %p, double %a, double 0.0
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ret double %x
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}
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; CHECK-LABEL: maximum_v2half
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define <2 x half> @maximum_v2half(<2 x half> %a) #0 {
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; CHECK-NONAN-DAG: setp
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; CHECK-NONAN-DAG: setp
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; CHECK-NONAN-DAG: selp.b16
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; CHECK-NONAN-DAG: selp.b16
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; CHECK-NAN: max.NaN.f16x2
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%p = fcmp ugt <2 x half> %a, zeroinitializer
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%x = select <2 x i1> %p, <2 x half> %a, <2 x half> zeroinitializer
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ret <2 x half> %x
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}
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