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c94da20917
Summary: DataLayout keeps the string used for its creation. As a side effect it is no longer needed in the Module. This is "almost" NFC, the string is no longer canonicalized, you can't rely on two "equals" DataLayout having the same string returned by getStringRepresentation(). Get rid of DataLayoutPass: the DataLayout is in the Module The DataLayout is "per-module", let's enforce this by not duplicating it more than necessary. One more step toward non-optionality of the DataLayout in the module. Make DataLayout Non-Optional in the Module Module->getDataLayout() will never returns nullptr anymore. Reviewers: echristo Subscribers: resistor, llvm-commits, jholewinski Differential Revision: http://reviews.llvm.org/D7992 From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231270 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.1 KiB
LLVM
48 lines
1.1 KiB
LLVM
; RUN: opt < %s -loop-reduce -S -mtriple=x86_64-unknown-unknown | FileCheck %s
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;
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; Test LSR's OptimizeShadowIV. Handle a floating-point IV with a
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; nonzero initial value.
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; rdar://9786536
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; Provide legal integer types.
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target datalayout = "n8:16:32:64"
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; First, make sure LSR doesn't crash on an empty IVUsers list.
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; CHECK-LABEL: @dummyIV(
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; CHECK-NOT: phi
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; CHECK-NOT: sitofp
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; CHECK: br
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define void @dummyIV() nounwind {
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entry:
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br label %loop
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loop:
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%i.01 = phi i32 [ -39, %entry ], [ %inc, %loop ]
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%conv = sitofp i32 %i.01 to double
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%inc = add nsw i32 %i.01, 1
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br i1 undef, label %loop, label %for.end
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for.end:
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unreachable
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}
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; Now check that the computed double constant is correct.
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; CHECK-LABEL: @doubleIV(
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; CHECK: phi double [ -3.900000e+01, %entry ]
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; CHECK: br
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define void @doubleIV() nounwind {
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entry:
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br label %loop
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loop:
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%i.01 = phi i32 [ -39, %entry ], [ %inc, %loop ]
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%conv = sitofp i32 %i.01 to double
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%div = fdiv double %conv, 4.000000e+01
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%inc = add nsw i32 %i.01, 1
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br i1 undef, label %loop, label %for.end
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for.end:
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unreachable
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}
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