mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-10-11 23:25:15 +00:00
3846163aee
when deciding that the loop has stopped evolving. Fixes miscompile in the gcc torture testsuite! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142843 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
1.1 KiB
LLVM
30 lines
1.1 KiB
LLVM
; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
|
|
|
|
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-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
@foo.a = internal constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16
|
|
|
|
define i32 @foo() nounwind uwtable noinline {
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
|
|
; CHECK: --> %sum.0 Exits: 28
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
|
|
%cmp = icmp ult i32 %i.0, 8
|
|
br i1 %cmp, label %for.inc, label %for.end
|
|
|
|
for.inc: ; preds = %for.cond
|
|
%idxprom = sext i32 %i.0 to i64
|
|
%arrayidx = getelementptr inbounds [8 x i32]* @foo.a, i64 0, i64 %idxprom
|
|
%0 = load i32* %arrayidx, align 4
|
|
%add = add nsw i32 %sum.0, %0
|
|
%inc = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret i32 %sum.0
|
|
}
|