[PATCH] D56845: [AMDGPU] Add some missing always-uniform values.
Neil Henning via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jan 18 08:44:12 PST 2019
This revision was automatically updated to reflect the committed changes.
Closed by commit rL351562: [AMDGPU] Add some missing always-uniform values. (authored by sheredom, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D56845?vs=182529&id=182530#toc
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D56845/new/
https://reviews.llvm.org/D56845
Files:
llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
llvm/trunk/test/Analysis/DivergenceAnalysis/AMDGPU/always_uniform.ll
Index: llvm/trunk/test/Analysis/DivergenceAnalysis/AMDGPU/always_uniform.ll
===================================================================
--- llvm/trunk/test/Analysis/DivergenceAnalysis/AMDGPU/always_uniform.ll
+++ llvm/trunk/test/Analysis/DivergenceAnalysis/AMDGPU/always_uniform.ll
@@ -1,6 +1,7 @@
; RUN: opt -mtriple amdgcn-unknown-amdhsa -analyze -divergence -use-gpu-divergence-analysis %s | FileCheck %s
-define amdgpu_kernel void @workitem_id_x() #1 {
+; CHECK: for function 'readfirstlane':
+define amdgpu_kernel void @readfirstlane() {
%id.x = call i32 @llvm.amdgcn.workitem.id.x()
; CHECK: DIVERGENT: %id.x = call i32 @llvm.amdgcn.workitem.id.x()
%first.lane = call i32 @llvm.amdgcn.readfirstlane(i32 %id.x)
@@ -8,7 +9,24 @@
ret void
}
+; CHECK: for function 'icmp':
+define amdgpu_kernel void @icmp(i32 inreg %x) {
+; CHECK-NOT: DIVERGENT: %icmp = call i64 @llvm.amdgcn.icmp.i32
+ %icmp = call i64 @llvm.amdgcn.icmp.i32(i32 %x, i32 0, i32 33)
+ ret void
+}
+
+; CHECK: for function 'fcmp':
+define amdgpu_kernel void @fcmp(float inreg %x, float inreg %y) {
+; CHECK-NOT: DIVERGENT: %fcmp = call i64 @llvm.amdgcn.fcmp.i32
+ %fcmp = call i64 @llvm.amdgcn.fcmp.i32(float %x, float %y, i32 33)
+ ret void
+}
+
declare i32 @llvm.amdgcn.workitem.id.x() #0
declare i32 @llvm.amdgcn.readfirstlane(i32) #0
+declare i64 @llvm.amdgcn.icmp.i32(i32, i32, i32) #1
+declare i64 @llvm.amdgcn.fcmp.i32(float, float, i32) #1
attributes #0 = { nounwind readnone }
+attributes #1 = { nounwind readnone convergent }
Index: llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -579,6 +579,8 @@
return false;
case Intrinsic::amdgcn_readfirstlane:
case Intrinsic::amdgcn_readlane:
+ case Intrinsic::amdgcn_icmp:
+ case Intrinsic::amdgcn_fcmp:
return true;
}
}
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