5a56a25b0b
The code paths in the absence of TargetMachine, TargetLowering or TargetRegisterInfo are poorly tested. As rL285987 said, requiring TargetPassConfig allows us to delete many (untested) checks littered everywhere. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D73754
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
; RUN: opt -mtriple=x86_64 -codegenprepare -S < %s | FileCheck %s
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; CHECK: for.body.preheader
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@N = common global i32 0, align 4
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@E = common global i8** null, align 8
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@B = common global i8** null, align 8
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; Function Attrs: nounwind
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define i32 @foo() {
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entry:
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%0 = load i32, i32* @N, align 4
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%1 = load i8**, i8*** @E, align 8
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%2 = load i8**, i8*** @B, align 8
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%cmp7 = icmp eq i8** %2, %1
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br i1 %cmp7, label %for.cond.cleanup, label %for.body.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.cond.cleanup.loopexit: ; preds = %for.body
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%add.lcssa = phi i32 [ %add, %for.body ]
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br label %for.cond.cleanup
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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%n.0.lcssa = phi i32 [ %0, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
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ret i32 %n.0.lcssa
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for.body: ; preds = %for.body.preheader, %for.body
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%I.09 = phi i8** [ %incdec.ptr, %for.body ], [ %2, %for.body.preheader ]
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%n.08 = phi i32 [ %add, %for.body ], [ %0, %for.body.preheader ]
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%3 = load i8*, i8** %I.09, align 8
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%call = tail call i32 @map(i8* %3)
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%add = add nsw i32 %call, %n.08
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%incdec.ptr = getelementptr inbounds i8*, i8** %I.09, i64 1
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%cmp = icmp eq i8** %incdec.ptr, %1
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br i1 %cmp, label %for.cond.cleanup.loopexit, label %for.body
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}
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declare i32 @map(i8*)
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