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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Hexagon/swp-epilog-phi11.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

34 lines
1.2 KiB
LLVM

; RUN: llc -mtriple=hexagon-unknown-elf -mcpu=hexagonv55 -hexagon-initial-cfg-cleanup=0 -terminal-rule=0 < %s | FileCheck %s
; Test that the pipeliner correctly generates the operands in the
; epilog.
; CHECK: loop0
; CHECK: r{{[0-9]+}} = sfsub([[REG0:r([0-9]+)]],[[REG1:r([0-9]+)]])
; CHECK: endloop0
; CHECK: r{{[0-9]+}} = sfsub([[REG0]],[[REG1]])
; CHECK: r{{[0-9]+}} = sfsub([[REG0]],r{{[0-9]+}})
define dso_local void @test(i32 %m, ptr noalias %p0, ptr noalias %p1) local_unnamed_addr #0 {
entry:
%div = sdiv i32 %m, 2
%sub = add nsw i32 %div, -1
br label %for.body.prol
for.body.prol:
%i.0106.prol = phi i32 [ undef, %for.body.prol ], [ %sub, %entry ]
%sr.prol = phi float [ %0, %for.body.prol ], [ undef, %entry ]
%sr109.prol = phi float [ %sr.prol, %for.body.prol ], [ undef, %entry ]
%prol.iter = phi i32 [ %prol.iter.sub, %for.body.prol ], [ undef, %entry ]
%0 = load float, ptr %p0, align 4
%sub7.prol = fsub contract float %sr109.prol, %0
store float %sub7.prol, ptr %p1, align 4
%prol.iter.sub = add i32 %prol.iter, -1
%prol.iter.cmp = icmp eq i32 %prol.iter.sub, 0
br i1 %prol.iter.cmp, label %for.body.prol.loopexit, label %for.body.prol
for.body.prol.loopexit:
unreachable
}