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589bf0865c
figuring out the base of the IV. This produces better code in the example. (Addresses use (IV) instead of (BASE,IV) - a significant improvement on low-register machines like x86). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60374 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
897 B
LLVM
29 lines
897 B
LLVM
; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin | grep -v lea
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; ModuleID = '<stdin>'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin9.5"
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define i8* @test(i8* %Q, i32* %L) nounwind {
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entry:
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br label %bb1
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bb: ; preds = %bb1, %bb1
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%indvar.next = add i32 %P.0.rec, 1 ; <i32> [#uses=1]
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br label %bb1
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bb1: ; preds = %bb, %entry
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%P.0.rec = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=3]
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%P.0 = getelementptr i8* %Q, i32 %P.0.rec ; <i8*> [#uses=2]
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%0 = load i8* %P.0, align 1 ; <i8> [#uses=1]
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switch i8 %0, label %bb3 [
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i8 12, label %bb
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i8 42, label %bb
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]
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bb3: ; preds = %bb1
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%P.0.sum = add i32 %P.0.rec, 2 ; <i32> [#uses=1]
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%1 = getelementptr i8* %Q, i32 %P.0.sum ; <i8*> [#uses=1]
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store i8 4, i8* %1, align 1
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ret i8* %P.0
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}
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