source: icGREP/icgrep-devel/llvm-3.8.0.src/test/Analysis/ScalarEvolution/2008-07-29-SMinExpr.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 822 bytes
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1; RUN: opt < %s -analyze -scalar-evolution \
2; RUN:   -scalar-evolution-max-iterations=0 | FileCheck %s
3; PR2607
4
5define i32 @b(i32 %x, i32 %y) nounwind {
6entry:
7        %cmp2 = icmp slt i32 %y, %x
8        %cond3 = select i1 %cmp2, i32 %y, i32 %x
9        %cmp54 = icmp slt i32 %cond3, -2147483632
10        br i1 %cmp54, label %forinc, label %afterfor
11
12forinc:         ; preds = %forinc, %entry
13        %j.01 = phi i32 [ %dec, %forinc ], [ -2147483632, %entry ]
14        %dec = add i32 %j.01, -1
15        %cmp = icmp slt i32 %y, %x
16        %cond = select i1 %cmp, i32 %y, i32 %x
17        %cmp5 = icmp sgt i32 %dec, %cond
18        br i1 %cmp5, label %forinc, label %afterfor
19
20afterfor:               ; preds = %forinc, %entry
21        %j.0.lcssa = phi i32 [ -2147483632, %entry ], [ %dec, %forinc ]
22        ret i32 %j.0.lcssa
23}
24
25; CHECK: backedge-taken count is (-2147483632 + ((-1 + (-1 * %{{[xy]}})) smax (-1 + (-1 * %{{[xy]}}))))
26
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