mirror of
https://github.com/c64scene-ar/llvm-6502.git
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68df750a4f
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141825 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.5 KiB
LLVM
42 lines
1.5 KiB
LLVM
; Base should not be i*3, it should be i*2.
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; RUN: opt < %s -loop-reduce -S | \
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; RUN: not grep {mul.*%i, 3}
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; Indvar should not start at zero:
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; RUN: opt < %s -loop-reduce -S | \
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; RUN: not grep {phi i32 .* 0}
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; END.
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; mul uint %i, 3
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target datalayout = "e-p:32:32-n32"
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target triple = "i686-apple-darwin8"
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@flags2 = external global [8193 x i8], align 32 ; <[8193 x i8]*> [#uses=1]
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define void @foo(i32 %k, i32 %i.s) {
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entry:
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%i = bitcast i32 %i.s to i32 ; <i32> [#uses=2]
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%k_addr.012 = shl i32 %i.s, 1 ; <i32> [#uses=1]
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%tmp14 = icmp sgt i32 %k_addr.012, 8192 ; <i1> [#uses=1]
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br i1 %tmp14, label %return, label %bb.preheader
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bb.preheader: ; preds = %entry
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%tmp. = shl i32 %i, 1 ; <i32> [#uses=1]
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br label %bb
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bb: ; preds = %bb, %bb.preheader
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%indvar = phi i32 [ %indvar.next, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=2]
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%tmp.15 = mul i32 %indvar, %i ; <i32> [#uses=1]
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%tmp.16 = add i32 %tmp.15, %tmp. ; <i32> [#uses=2]
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%k_addr.0.0 = bitcast i32 %tmp.16 to i32 ; <i32> [#uses=1]
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%gep.upgrd.1 = zext i32 %tmp.16 to i64 ; <i64> [#uses=1]
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%tmp = getelementptr [8193 x i8]* @flags2, i32 0, i64 %gep.upgrd.1 ; <i8*> [#uses=1]
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store i8 0, i8* %tmp
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%k_addr.0 = add i32 %k_addr.0.0, %i.s ; <i32> [#uses=1]
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%tmp.upgrd.2 = icmp sgt i32 %k_addr.0, 8192 ; <i1> [#uses=1]
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
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br i1 %tmp.upgrd.2, label %return.loopexit, label %bb
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return.loopexit: ; preds = %bb
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br label %return
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return: ; preds = %return.loopexit, %entry
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ret void
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}
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