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; RUN: llc -fp-contract=fast -O3 -march=hexagon -mcpu=hexagonv5 < %s
; REQUIRES: asserts
; Test that the pipeliner doesn't ICE due because the PHI generation
; code in the epilog does not attempt to reuse an existing PHI.
define void @test(float* noalias %srcImg, i32 %width, float* noalias %dstImg) {
entry.split:
%shr = lshr i32 %width, 1
%incdec.ptr253 = getelementptr inbounds float, float* %dstImg, i32 2
br i1 undef, label %for.body, label %for.end
for.body:
%dst.21518.reg2mem.0 = phi float* [ null, %while.end712 ], [ %incdec.ptr253, %entry.split ]
%dstEnd.01519 = phi float* [ %add.ptr725, %while.end712 ], [ undef, %entry.split ]
%add.ptr367 = getelementptr inbounds float, float* %srcImg, i32 undef
%dst.31487 = getelementptr inbounds float, float* %dst.21518.reg2mem.0, i32 1
br i1 undef, label %while.body661.preheader, label %while.end712
while.body661.preheader:
%scevgep1941 = getelementptr float, float* %add.ptr367, i32 1
br label %while.body661.ur
while.body661.ur:
%lsr.iv1942 = phi float* [ %scevgep1941, %while.body661.preheader ], [ undef, %while.body661.ur ]
%col1.31508.reg2mem.0.ur = phi float [ %col3.31506.reg2mem.0.ur, %while.body661.ur ], [ undef, %while.body661.preheader ]
%col4.31507.reg2mem.0.ur = phi float [ %add710.ur, %while.body661.ur ], [ 0.000000e+00, %while.body661.preheader ]
%col3.31506.reg2mem.0.ur = phi float [ %add689.ur, %while.body661.ur ], [ undef, %while.body661.preheader ]
%dst.41511.ur = phi float* [ %incdec.ptr674.ur, %while.body661.ur ], [ %dst.31487, %while.body661.preheader ]
%mul662.ur = fmul float %col1.31508.reg2mem.0.ur, 4.000000e+00
%add663.ur = fadd float undef, %mul662.ur
%add665.ur = fadd float %add663.ur, undef
%add667.ur = fadd float undef, %add665.ur
%add669.ur = fadd float undef, %add667.ur
%add670.ur = fadd float %col4.31507.reg2mem.0.ur, %add669.ur
%conv673.ur = fmul float %add670.ur, 3.906250e-03
%incdec.ptr674.ur = getelementptr inbounds float, float* %dst.41511.ur, i32 1
store float %conv673.ur, float* %dst.41511.ur, align 4
%scevgep1959 = getelementptr float, float* %lsr.iv1942, i32 -1
%0 = load float, float* %scevgep1959, align 4
%mul680.ur = fmul float %0, 4.000000e+00
%add681.ur = fadd float undef, %mul680.ur
%add684.ur = fadd float undef, %add681.ur
%add687.ur = fadd float undef, %add684.ur
%add689.ur = fadd float undef, %add687.ur
%add699.ur = fadd float undef, undef
%add703.ur = fadd float undef, %add699.ur
%add707.ur = fadd float undef, %add703.ur
%add710.ur = fadd float undef, %add707.ur
%cmp660.ur = icmp ult float* %incdec.ptr674.ur, %dstEnd.01519
br i1 %cmp660.ur, label %while.body661.ur, label %while.end712
while.end712:
%dst.4.lcssa.reg2mem.0 = phi float* [ %dst.31487, %for.body ], [ undef, %while.body661.ur ]
%conv721 = fpext float undef to double
%mul722 = fmul double %conv721, 0x3F7111112119E8FB
%conv723 = fptrunc double %mul722 to float
store float %conv723, float* %dst.4.lcssa.reg2mem.0, align 4
%add.ptr725 = getelementptr inbounds float, float* %dstEnd.01519, i32 %shr
%cmp259 = icmp ult i32 undef, undef
br i1 %cmp259, label %for.body, label %for.end
for.end:
ret void
}
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