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https://github.com/c64scene-ar/llvm-6502.git
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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
49 lines
1.3 KiB
LLVM
49 lines
1.3 KiB
LLVM
;RUN: opt -S %s -indvars | FileCheck %s
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; Provide legal integer types.
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target datalayout = "n8:16:32:64"
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; CHECK-LABEL: @foo(
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; CHECK-NOT: %lftr.wideiv = trunc i32 %indvars.iv.next to i16
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; CHECK: %exitcond = icmp ne i32 %indvars.iv.next, 512
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define void @foo() #0 {
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%i.01 = phi i16 [ 0, %entry ], [ %inc, %for.body ]
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%conv2 = sext i16 %i.01 to i32
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call void @bar(i32 %conv2) #1
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%inc = add i16 %i.01, 1
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%cmp = icmp slt i16 %inc, 512
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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; Check that post-incrementing the backedge taken count does not overflow.
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; CHECK-LABEL: @postinc(
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; CHECK: icmp eq i32 %indvars.iv, 255
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define i32 @postinc() #0 {
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entry:
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br label %do.body
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do.body: ; preds = %do.body, %entry
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%first.0 = phi i8 [ 0, %entry ], [ %inc, %do.body ]
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%conv = zext i8 %first.0 to i32
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call void @bar(i32 %conv) #1
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%inc = add i8 %first.0, 1
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%cmp = icmp eq i8 %first.0, -1
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br i1 %cmp, label %do.end, label %do.body
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do.end: ; preds = %do.body
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ret i32 0
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}
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declare void @bar(i32)
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attributes #0 = { nounwind uwtable }
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attributes #1 = { nounwind }
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