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aa0efac1ba
Summary: For PPC BinaryOperator of fp128 will become libcall, we shouldn't convert loop to CTR loop if the loop contain libCall. But currently, in the PPCTTIImpl::mightUseCTR() function, we only deal with BinaryOperator for ppc_fp128, don't deal with the fp128. Reviewed By: shchenz Differential Revision: https://reviews.llvm.org/D81353
33 lines
1.2 KiB
LLVM
33 lines
1.2 KiB
LLVM
; RUN: llc -verify-machineinstrs -stop-after=hardware-loops -mcpu=pwr9 \
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; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s
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@a = internal global fp128 0xL00000000000000000000000000000000, align 16
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@x = internal global [4 x fp128] zeroinitializer, align 16
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@y = internal global [4 x fp128] zeroinitializer, align 16
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define void @fmul_ctrloop_fp128() {
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entry:
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%0 = load fp128, fp128* @a, align 16
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%i.06 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds [4 x fp128], [4 x fp128]* @x, i64 0, i64 %i.06
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%1 = load fp128, fp128* %arrayidx, align 16
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%mul = fmul fp128 %0, %1
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%arrayidx1 = getelementptr inbounds [4 x fp128], [4 x fp128]* @y, i64 0, i64 %i.06
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store fp128 %mul, fp128* %arrayidx1, align 16
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%inc = add nuw nsw i64 %i.06, 1
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%exitcond = icmp eq i64 %inc, 4
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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; CHECK-LABEL: fmul_ctrloop_fp128
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; CHECK-NOT: call void @llvm.set.loop.iterations.i64(i64 4)
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; CHECK-NOT: call i1 @llvm.loop.decrement.i64(i64 1)
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}
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declare void @obfuscate(i8*, ...) local_unnamed_addr #2
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