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llvm-6502/test/Transforms/LoopStrengthReduce/scaling_factor_cost_crash.ll

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LSR: Fix the parameters used to compute the scaling factor cost. Prior to this change, the considered addressing modes may be invalid since the maximum and minimum offsets were not taking into account. This was causing an assertion failure. The added test case exercices that behavior. <rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal addressing mode has an illegal cost!") git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184341 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 19:59:41 +00:00
; RUN: opt -loop-reduce %s -S -o - | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S32"
target triple = "i686-pc-win32"
; <rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal addressing mode has an illegal cost!")
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @scalingFactorCrash(
LSR: Fix the parameters used to compute the scaling factor cost. Prior to this change, the considered addressing modes may be invalid since the maximum and minimum offsets were not taking into account. This was causing an assertion failure. The added test case exercices that behavior. <rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal addressing mode has an illegal cost!") git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184341 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 19:59:41 +00:00
define void @scalingFactorCrash() {
br i1 undef, label %1, label %24
; <label>:1 ; preds = %0
br i1 undef, label %2, label %24
; <label>:2 ; preds = %1
br i1 undef, label %3, label %24
; <label>:3 ; preds = %2
br i1 undef, label %4, label %24
; <label>:4 ; preds = %3
br i1 undef, label %24, label %6
; <label>:5 ; preds = %6
br i1 undef, label %24, label %7
; <label>:6 ; preds = %6, %4
br i1 undef, label %6, label %5
; <label>:7 ; preds = %9, %5
br label %8
; <label>:8 ; preds = %8, %7
br i1 undef, label %9, label %8
; <label>:9 ; preds = %8
br i1 undef, label %7, label %10
; <label>:10 ; preds = %9
br i1 undef, label %24, label %11
; <label>:11 ; preds = %10
br i1 undef, label %15, label %13
; <label>:12 ; preds = %14
br label %15
; <label>:13 ; preds = %11
br label %14
; <label>:14 ; preds = %14, %13
br i1 undef, label %14, label %12
; <label>:15 ; preds = %12, %11
br i1 undef, label %16, label %24
; <label>:16 ; preds = %16, %15
%17 = phi i32 [ %21, %16 ], [ undef, %15 ]
%18 = sub i32 %17, 1623127498
%19 = getelementptr inbounds i32* undef, i32 %18
store i32 undef, i32* %19, align 4
%20 = add i32 %17, 1623127499
%21 = add i32 %20, -1623127498
%22 = add i32 %21, -542963121
%23 = icmp ult i32 %22, undef
br i1 undef, label %16, label %24
; <label>:24 ; preds = %16, %15, %10, %5, %4, %3, %2, %1, %0
ret void
}
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