45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
|
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s
|
||
|
|
; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
|
||
|
|
; PR3275
|
||
|
|
|
||
|
|
; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'func_15'
|
||
|
|
; CHECK-NOT: /u -1
|
||
|
|
|
||
|
|
@g_16 = external global i16 ; <i16*> [#uses=3]
|
||
|
|
@.str = external constant [4 x i8] ; <[4 x i8]*> [#uses=0]
|
||
|
|
|
||
|
|
define void @func_15() nounwind {
|
||
|
|
entry:
|
||
|
|
%0 = load i16, i16* @g_16, align 2 ; <i16> [#uses=1]
|
||
|
|
%1 = icmp sgt i16 %0, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %1, label %bb2, label %bb.nph
|
||
|
|
|
||
|
|
bb.nph: ; preds = %entry
|
||
|
|
%g_16.promoted = load i16, i16* @g_16 ; <i16> [#uses=1]
|
||
|
|
br label %bb
|
||
|
|
|
||
|
|
bb: ; preds = %bb1, %bb.nph
|
||
|
|
%g_16.tmp.0 = phi i16 [ %g_16.promoted, %bb.nph ], [ %2, %bb1 ] ; <i16> [#uses=1]
|
||
|
|
%2 = add i16 %g_16.tmp.0, -1 ; <i16> [#uses=3]
|
||
|
|
br label %bb1
|
||
|
|
|
||
|
|
bb1: ; preds = %bb
|
||
|
|
%3 = icmp sgt i16 %2, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %3, label %bb1.bb2_crit_edge, label %bb
|
||
|
|
|
||
|
|
bb1.bb2_crit_edge: ; preds = %bb1
|
||
|
|
store i16 %2, i16* @g_16
|
||
|
|
br label %bb2
|
||
|
|
|
||
|
|
bb2: ; preds = %bb1.bb2_crit_edge, %entry
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
return: ; preds = %bb2
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @main() nounwind
|
||
|
|
|
||
|
|
declare i32 @printf(i8*, ...) nounwind
|
||
|
|
|