forked from OSchip/llvm-project
59 lines
2.6 KiB
LLVM
59 lines
2.6 KiB
LLVM
|
; RUN: llc < %s -march=amdgcn -verify-machineinstrs | FileCheck -check-prefix=GCN %s
|
||
|
|
||
|
; GCN-LABEL: {{^}}checkTwoBlocksWithUniformBranch
|
||
|
; GCN: BB0_2
|
||
|
; GCN: v_add
|
||
|
define amdgpu_kernel void @checkTwoBlocksWithUniformBranch(i32 addrspace(1)* nocapture %out, i32 %width, float %xPos, float %yPos, float %xStep, float %yStep, i32 %maxIter) {
|
||
|
entry:
|
||
|
%conv = call i32 @llvm.amdgcn.workitem.id.x() #1
|
||
|
%rem = urem i32 %conv, %width
|
||
|
%div = udiv i32 %conv, %width
|
||
|
%conv1 = sitofp i32 %rem to float
|
||
|
%x = tail call float @llvm.fmuladd.f32(float %xStep, float %conv1, float %xPos)
|
||
|
%conv2 = sitofp i32 %div to float
|
||
|
%y = tail call float @llvm.fmuladd.f32(float %yStep, float %conv2, float %yPos)
|
||
|
%yy = fmul float %y, %y
|
||
|
%xy = tail call float @llvm.fmuladd.f32(float %x, float %x, float %yy)
|
||
|
%cmp01 = fcmp ole float %xy, 4.000000e+00
|
||
|
%cmp02 = icmp ne i32 %maxIter, 0
|
||
|
%cond01 = and i1 %cmp02, %cmp01
|
||
|
br i1 %cond01, label %for.body.preheader, label %for.end
|
||
|
|
||
|
for.body.preheader: ; preds = %entry
|
||
|
br label %for.body
|
||
|
|
||
|
for.body: ; preds = %for.body.preheader, %for.body
|
||
|
%x_val = phi float [ %call8, %for.body ], [ %x, %for.body.preheader ]
|
||
|
%iter_val = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
|
||
|
%y_val = phi float [ %call9, %for.body ], [ %y, %for.body.preheader ]
|
||
|
%sub = fsub float -0.000000e+00, %y_val
|
||
|
%call7 = tail call float @llvm.fmuladd.f32(float %x_val, float %x_val, float %x) #1
|
||
|
%call8 = tail call float @llvm.fmuladd.f32(float %sub, float %y_val, float %call7) #1
|
||
|
%mul = fmul float %x_val, 2.000000e+00
|
||
|
%call9 = tail call float @llvm.fmuladd.f32(float %mul, float %y_val, float %y) #1
|
||
|
%inc = add nuw i32 %iter_val, 1
|
||
|
%mul3 = fmul float %call9, %call9
|
||
|
%0 = tail call float @llvm.fmuladd.f32(float %call8, float %call8, float %mul3)
|
||
|
%cmp = fcmp ole float %0, 4.000000e+00
|
||
|
%cmp5 = icmp ult i32 %inc, %maxIter
|
||
|
%or.cond = and i1 %cmp5, %cmp
|
||
|
br i1 %or.cond, label %for.body, label %for.end.loopexit
|
||
|
|
||
|
for.end.loopexit: ; preds = %for.body
|
||
|
br label %for.end
|
||
|
|
||
|
for.end: ; preds = %for.end.loopexit, %entry
|
||
|
%iter.0.lcssa = phi i32 [ 0, %entry ], [ %inc, %for.end.loopexit ]
|
||
|
%idxprom = ashr exact i32 %conv, 32
|
||
|
%arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %idxprom
|
||
|
store i32 %iter.0.lcssa, i32 addrspace(1)* %arrayidx, align 4
|
||
|
ret void
|
||
|
}
|
||
|
|
||
|
; Function Attrs: nounwind readnone
|
||
|
declare i32 @llvm.amdgcn.workitem.id.x() #0
|
||
|
declare float @llvm.fmuladd.f32(float, float, float) #1
|
||
|
|
||
|
attributes #0 = { nounwind readnone }
|
||
|
attributes #1 = { readnone }
|