llvm-6502/test/Transforms/IndVarSimplify/preserve-gep.ll
Andrew Trick 26e5285f9f Conditionalize indvars tests that rely on SCEV expansion of geps,
which is relevant with canonical IVs. Anything else being checked by
these tests is already covered by early CSE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139535 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12 20:26:34 +00:00

40 lines
1.3 KiB
LLVM

; RUN: opt < %s -indvars -S -enable-iv-rewrite | FileCheck %s
; CHECK-NOT: {{ptrtoint|inttoptr}}
; CHECK: getelementptr
; CHECK-NOT: {{ptrtoint|inttoptr|getelementptr}}
; Indvars shouldn't leave getelementptrs expanded out as
; inttoptr+ptrtoint in its output in common cases.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n:32:64"
target triple = "x86_64-unknown-linux-gnu"
%struct.Foo = type { i32, i32, [10 x i32], i32 }
define void @me(%struct.Foo* nocapture %Bar) nounwind {
entry:
br i1 false, label %return, label %bb.nph
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb1, %bb.nph
%i.01 = phi i64 [ %4, %bb1 ], [ 0, %bb.nph ] ; <i64> [#uses=3]
%0 = getelementptr %struct.Foo* %Bar, i64 %i.01, i32 2, i64 3 ; <i32*> [#uses=1]
%1 = load i32* %0, align 4 ; <i32> [#uses=1]
%2 = mul i32 %1, 113 ; <i32> [#uses=1]
%3 = getelementptr %struct.Foo* %Bar, i64 %i.01, i32 2, i64 3 ; <i32*> [#uses=1]
store i32 %2, i32* %3, align 4
%4 = add i64 %i.01, 1 ; <i64> [#uses=2]
br label %bb1
bb1: ; preds = %bb
%phitmp = icmp sgt i64 %4, 19999 ; <i1> [#uses=1]
br i1 %phitmp, label %bb1.return_crit_edge, label %bb
bb1.return_crit_edge: ; preds = %bb1
br label %return
return: ; preds = %bb1.return_crit_edge, %entry
ret void
}