423642a597
IntToPtr and PtrToInt instructions are basically no-ops that we can handle as such. In order to generate them properly as parameters we had to improve the ScopExpander, though the change is the first in the direction of a more aggressive scalar synthetization. This patch was originally contributed by Johannes Doerfert in r271888, but was in conflict with the revert in r272483. This is a recommit with some minor adjustment to the test cases to take care of differing instruction names. llvm-svn: 272485
45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
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;
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; The SCEV expression in this test case refers to a sequence of sdiv
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; instructions, which are part of different bbs in the SCoP. When code
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; generating the parameter expressions, the code that is generated by the SCEV
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; expander has still references to the in-scop instructions, which was invalid.
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;
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; CHECK: polly.start
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;
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target triple = "x86_64-unknown-linux-gnu"
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define void @_vorbis_apply_window(float* %d, i64 %param) {
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entry:
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%0 = load float*, float** undef, align 8
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%div23.neg = sdiv i64 0, -4
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%sub24 = add i64 0, %div23.neg
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br label %for.cond.30.preheader
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for.cond.30.preheader: ; preds = %for.body, %entry
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%sext = shl i64 %sub24, 32
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%conv48.74 = ashr exact i64 %sext, 32
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%div43 = sdiv i64 %param, 2
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%cmp49.75 = icmp slt i64 %conv48.74, 0
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br i1 %cmp49.75, label %for.body.51.lr.ph, label %for.cond.60.preheader
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for.body.51.lr.ph: ; preds = %for.cond.30.preheader
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%div44 = sdiv i64 %div43, 2
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%sub45 = add nsw i64 %div44, 4294967295
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%1 = trunc i64 %sub45 to i32
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%2 = sext i32 %1 to i64
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br label %for.body.51
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for.cond.60.preheader: ; preds = %for.body.51, %for.cond.30.preheader
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ret void
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for.body.51: ; preds = %for.body.51, %for.body.51.lr.ph
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%indvars.iv86 = phi i64 [ %2, %for.body.51.lr.ph ], [ undef, %for.body.51 ]
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%arrayidx53 = getelementptr inbounds float, float* %0, i64 %indvars.iv86
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%3 = load float, float* %arrayidx53, align 4
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%arrayidx55 = getelementptr inbounds float, float* %d, i64 0
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%mul56 = fmul float %3, undef
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store float %mul56, float* %arrayidx55, align 4
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br i1 false, label %for.body.51, label %for.cond.60.preheader
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}
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