1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s
;
; This caused the code generation to generate invalid code as the same BBMap was
; used for the whole non-affine region. When %add is synthesized for the
; incoming value of subregion_if first, the code for it was generated into
; subregion_if, but reused for the incoming value of subregion_exit, although it
; is not dominated by subregion_if.
;
; CHECK-LABEL: polly.stmt.subregion_entry:
; CHECK: %[[R0:[0-9]*]] = add i32 %n, -2
;
; CHECK-LABEL: polly.stmt.subregion_if:
; CHECK: %[[R1:[0-9]*]] = add i32 %n, -2
;
; CHECK-LABEL: polly.stmt.subregion_exit.region_exiting:
; CHECK: %polly.retval = phi i32 [ %[[R1]], %polly.stmt.subregion_if ], [ %[[R0]], %polly.stmt.subregion_entry ]
define i32 @func(i32 %n){
entry:
br label %subregion_entry
subregion_entry:
%add = add nsw i32 %n, -2
%cmp = fcmp ogt float undef, undef
br i1 %cmp, label %subregion_if, label %subregion_exit
subregion_if:
br label %subregion_exit
subregion_exit:
%retval = phi i32 [ %add, %subregion_if ], [ %add, %subregion_entry ]
ret i32 %retval
}
|
