mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
7fd56b1e4a
Improved the AnalyzeBranch, InsertBranch, and RemoveBranch functions in order to handle more of our branch instructions. This requires changes to analyzeCompare and PredicateInstructions. Specifically, we've added support for new value compare jumps, improved handling of endloop, added more compare instructions, and improved support for predicate instructions. Differential Revision: http://reviews.llvm.org/D9559 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236876 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.8 KiB
LLVM
57 lines
1.8 KiB
LLVM
; RUN: llc -march=hexagon -O2 < %s | FileCheck %s
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define void @foo(i32 %n, i32* nocapture %A, i32* nocapture %B) nounwind optsize {
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entry:
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%cmp = icmp sgt i32 %n, 100
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br i1 %cmp, label %for.body.preheader, label %for.cond4.preheader
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; CHECK: endloop0
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; CHECK: endloop0
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; CHECK-NOT: endloop0
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for.body.preheader:
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br label %for.body
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for.cond4.preheader:
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%cmp113 = icmp sgt i32 %n, 0
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br i1 %cmp113, label %for.body7.preheader, label %if.end
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for.body7.preheader:
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br label %for.body7
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for.body:
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%arrayidx.phi = phi i32* [ %arrayidx.inc, %for.body ], [ %B, %for.body.preheader ]
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%arrayidx3.phi = phi i32* [ %arrayidx3.inc, %for.body ], [ %A, %for.body.preheader ]
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%i.014 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%0 = load i32, i32* %arrayidx.phi, align 4
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%sub = add nsw i32 %0, -1
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store i32 %sub, i32* %arrayidx3.phi, align 4
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%inc = add nsw i32 %i.014, 1
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%exitcond = icmp eq i32 %inc, %n
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%arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
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%arrayidx3.inc = getelementptr i32, i32* %arrayidx3.phi, i32 1
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br i1 %exitcond, label %if.end.loopexit, label %for.body
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for.body7:
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%arrayidx8.phi = phi i32* [ %arrayidx8.inc, %for.body7 ], [ %B, %for.body7.preheader ]
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%arrayidx9.phi = phi i32* [ %arrayidx9.inc, %for.body7 ], [ %A, %for.body7.preheader ]
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%i.117 = phi i32 [ %inc11, %for.body7 ], [ 0, %for.body7.preheader ]
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%1 = load i32, i32* %arrayidx8.phi, align 4
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%add = add nsw i32 %1, 1
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store i32 %add, i32* %arrayidx9.phi, align 4
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%inc11 = add nsw i32 %i.117, 1
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%exitcond18 = icmp eq i32 %inc11, %n
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%arrayidx8.inc = getelementptr i32, i32* %arrayidx8.phi, i32 1
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%arrayidx9.inc = getelementptr i32, i32* %arrayidx9.phi, i32 1
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br i1 %exitcond18, label %if.end.loopexit21, label %for.body7
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if.end.loopexit:
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br label %if.end
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if.end.loopexit21:
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br label %if.end
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if.end:
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ret void
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}
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