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74351693ea
This makes the LLVM assembly look better. E.g.:
define void @foo() #0 { ret void }
attributes #0 = { nounwind noinline ssp }
llvm-svn: 175605
68 lines
1.2 KiB
LLVM
68 lines
1.2 KiB
LLVM
; RUN: opt < %s -S -indvars -loop-deletion -simplifycfg | FileCheck %s
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; PR5794
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; Indvars and loop deletion should be able to eliminate all looping
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; in this testcase.
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; CHECK: define i32 @pmat(i32 %m, i32 %n, double* %y) #0 {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 0
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; CHECK-NEXT: }
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target datalayout = "e-p:64:64:64"
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define i32 @pmat(i32 %m, i32 %n, double* %y) nounwind {
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entry:
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%cmp4 = icmp sgt i32 %m, 0
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br i1 %cmp4, label %bb.n10, label %w.e12
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w.c:
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%cmp = icmp slt i32 %inc11, %m
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br i1 %cmp, label %w.c2.p, label %w.c.w.e12c
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w.c.w.e12c:
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br label %w.c.w.e12c.s
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w.c.w.e12c.s:
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br label %w.e12
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bb.n10:
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%cmp51 = icmp sgt i32 %n, 0
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br i1 %cmp51, label %bb.n10.w.c.w.e12c.sc, label %bb.n10.bb.n10.sc
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bb.n10.bb.n10.sc:
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br label %bb.n10.s
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bb.n10.w.c.w.e12c.sc:
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br label %w.c.w.e12c.s
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bb.n10.s:
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br label %w.c2.p
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w.c2.p:
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%i.05 = phi i32 [ 0, %bb.n10.s ], [ %inc11, %w.c ]
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br i1 false, label %bb.n, label %w.e
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w.c2:
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br i1 undef, label %w.b6, label %w.c2.w.ec
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w.c2.w.ec:
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br label %w.e
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bb.n:
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br label %w.b6
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w.b6:
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br label %w.c2
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w.e:
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%i.08 = phi i32 [ undef, %w.c2.w.ec ], [ %i.05, %w.c2.p ]
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%inc11 = add nsw i32 %i.08, 1
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br label %w.c
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w.e12:
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ret i32 0
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}
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; CHECK: attributes #0 = { nounwind }
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