llvm-project/polly/test/Simplify/redundant_scalarwrite.ll
rahulana-quic e1f056f692
Reland "[polly] Port polly tests to use NPM" (#92918)
Even as the NPM has been in use by Polly for a while now, the majority
of the tests continue using the LPM passes. This patch ports the tests
to use the NPM passes (for example, by replacing a flag such as
-polly-detect with -passes=polly-detect following the NPM syntax for
specifying passes) with some exceptions for some missing features in the
new passes.

Relanding #90632.
2024-05-24 13:09:34 -07:00

50 lines
882 B
LLVM

; RUN: opt %loadNPMPolly '-passes=polly-import-jscop,print<polly-simplify>' -polly-import-jscop-postfix=transformed -disable-output < %s | FileCheck %s -match-full-lines
;
; Remove redundant scalar stores.
;
; for (int j = 0; j < n; j += 1) {
; bodyA:
; double val = A[0];
;
; bodyB:
; A[0] = val;
; }
;
define void @redundant_scalarwrite(i32 %n, ptr noalias nonnull %A) {
entry:
br label %for
for:
%j = phi i32 [0, %entry], [%j.inc, %inc]
%j.cmp = icmp slt i32 %j, %n
br i1 %j.cmp, label %bodyA, label %exit
bodyA:
%val = load double, ptr %A
br label %bodyB
bodyB:
store double %val, ptr %A
br label %inc
inc:
%j.inc = add nuw nsw i32 %j, 1
br label %for
exit:
br label %return
return:
ret void
}
; CHECK: Statistics {
; CHECK: Redundant writes removed: 2
; CHECK: }
; CHECK: After accesses {
; CHECK-NEXT: }