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ce7b184512
- Handle simple cases of register copies (what current RDF CP allows). - Hexagon-specific dead code elimination: handles dead address updates in post-increment instructions. llvm-svn: 257504
32 lines
1.1 KiB
LLVM
32 lines
1.1 KiB
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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; CHECK-NOT: ={{.*}}add
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; CHECK-NOT: mem{{[bdhwu]}}
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define void @main() #0 {
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entry:
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br label %body
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body:
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%ip_vec30 = phi <2 x i32> [ %ip_vec, %body ], [ zeroinitializer, %entry ]
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%scevgep.phi = phi i32* [ %scevgep.inc, %body ], [ undef, %entry ]
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%polly.indvar = phi i32 [ %polly.indvar_next, %body ], [ 0, %entry ]
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%vector_ptr = bitcast i32* %scevgep.phi to <2 x i32>*
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%_p_vec_full = load <2 x i32>, <2 x i32>* %vector_ptr, align 8
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%ip_vec = add <2 x i32> %_p_vec_full, %ip_vec30
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%polly.indvar_next = add nsw i32 %polly.indvar, 2
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%polly.loop_cond = icmp slt i32 %polly.indvar, 4
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%scevgep.inc = getelementptr i32, i32* %scevgep.phi, i32 2
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br i1 %polly.loop_cond, label %body, label %exit
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exit:
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%0 = extractelement <2 x i32> %ip_vec, i32 1
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ret void
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}
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attributes #0 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!0 = !{!"int", !1}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA"}
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