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db3c93e416
This will remove suboptimal branching from the generated ll/sc loops. The extra simplification pass affects a lot of testcases, which have been modified to accommodate this change: either by modifying the test to become immune to the CFG simplification, or (less preferablt) by adding option -hexagon-initial-cfg-clenaup=0. llvm-svn: 338774
34 lines
805 B
LLVM
34 lines
805 B
LLVM
; RUN: llc -march=hexagon -hexagon-initial-cfg-cleanup=0 < %s | FileCheck %s
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; CHECK-NOT: if{{.*}}jump{{.*}}-1
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; CHECK: memw
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target triple = "hexagon"
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; Function Attrs: nounwind
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define void @f0() #0 {
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b0:
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br i1 undef, label %b2, label %b1
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b1: ; preds = %b0
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store i32 0, i32* undef, align 4, !tbaa !0
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unreachable
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b2: ; preds = %b0
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br i1 undef, label %b4, label %b3
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b3: ; preds = %b2
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%v0 = or i32 undef, 2048
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br label %b4
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b4: ; preds = %b3, %b2
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ret void
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}
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attributes #0 = { nounwind }
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!0 = !{!1, !1, i64 0}
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!1 = !{!"int", !2, i64 0}
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!2 = !{!"omnipotent char", !3, i64 0}
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!3 = !{!"Simple C/C++ TBAA"}
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