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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
53 lines
2.5 KiB
LLVM
53 lines
2.5 KiB
LLVM
; RUN: opt < %s -loop-reduce -S | not grep mul
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; Provide legal integer types.
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target datalayout = "n8:16:32:64"
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; Make sure we don't get a multiply by 6 in this loop.
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define i32 @foo(i32 %A, i32 %B, i32 %C, i32 %D) {
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entry:
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%tmp.5 = icmp sgt i32 %C, 0 ; <i1> [#uses=1]
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%tmp.25 = and i32 %A, 1 ; <i32> [#uses=1]
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br label %loopentry.1
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loopentry.1: ; preds = %loopexit.1, %entry
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%indvar20 = phi i32 [ 0, %entry ], [ %indvar.next21, %loopexit.1 ] ; <i32> [#uses=2]
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%k.1 = phi i32 [ 0, %entry ], [ %k.1.3, %loopexit.1 ] ; <i32> [#uses=2]
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br i1 %tmp.5, label %no_exit.1.preheader, label %loopexit.1
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no_exit.1.preheader: ; preds = %loopentry.1
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%i.0.0 = bitcast i32 %indvar20 to i32 ; <i32> [#uses=1]
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%tmp.9 = mul i32 %i.0.0, 6 ; <i32> [#uses=1]
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br label %no_exit.1.outer
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no_exit.1.outer: ; preds = %cond_true, %no_exit.1.preheader
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%k.1.2.ph = phi i32 [ %k.1, %no_exit.1.preheader ], [ %k.09, %cond_true ] ; <i32> [#uses=2]
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%j.1.2.ph = phi i32 [ 0, %no_exit.1.preheader ], [ %inc.1, %cond_true ] ; <i32> [#uses=1]
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br label %no_exit.1
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no_exit.1: ; preds = %cond_continue, %no_exit.1.outer
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%indvar.ui = phi i32 [ 0, %no_exit.1.outer ], [ %indvar.next, %cond_continue ] ; <i32> [#uses=2]
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%indvar = bitcast i32 %indvar.ui to i32 ; <i32> [#uses=1]
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%j.1.2 = add i32 %indvar, %j.1.2.ph ; <i32> [#uses=2]
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%tmp.11 = add i32 %j.1.2, %tmp.9 ; <i32> [#uses=1]
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%tmp.12 = trunc i32 %tmp.11 to i8 ; <i8> [#uses=1]
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%shift.upgrd.1 = zext i8 %tmp.12 to i32 ; <i32> [#uses=1]
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%tmp.13 = shl i32 %D, %shift.upgrd.1 ; <i32> [#uses=2]
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%tmp.15 = icmp eq i32 %tmp.13, %B ; <i1> [#uses=1]
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%inc.1 = add i32 %j.1.2, 1 ; <i32> [#uses=3]
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br i1 %tmp.15, label %cond_true, label %cond_continue
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cond_true: ; preds = %no_exit.1
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%tmp.26 = and i32 %tmp.25, %tmp.13 ; <i32> [#uses=1]
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%k.09 = add i32 %tmp.26, %k.1.2.ph ; <i32> [#uses=2]
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%tmp.517 = icmp slt i32 %inc.1, %C ; <i1> [#uses=1]
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br i1 %tmp.517, label %no_exit.1.outer, label %loopexit.1
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cond_continue: ; preds = %no_exit.1
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%tmp.519 = icmp slt i32 %inc.1, %C ; <i1> [#uses=1]
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%indvar.next = add i32 %indvar.ui, 1 ; <i32> [#uses=1]
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br i1 %tmp.519, label %no_exit.1, label %loopexit.1
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loopexit.1: ; preds = %cond_continue, %cond_true, %loopentry.1
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%k.1.3 = phi i32 [ %k.1, %loopentry.1 ], [ %k.09, %cond_true ], [ %k.1.2.ph, %cond_continue ] ; <i32> [#uses=2]
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%indvar.next21 = add i32 %indvar20, 1 ; <i32> [#uses=2]
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%exitcond = icmp eq i32 %indvar.next21, 4 ; <i1> [#uses=1]
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br i1 %exitcond, label %loopexit.0, label %loopentry.1
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loopexit.0: ; preds = %loopexit.1
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ret i32 %k.1.3
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}
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