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[test, HardwareLoops] Fix use of var defined in CHECK-NOT

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LLVM test Transforms/HardwareLoops/ARM/structure.ll tries to check for
the absence of a sequence of instructions with several CHECK-NOT with
one of those directives using a variable defined in another. However
CHECK-NOT are checked independently so that is using a variable defined
in a pattern that should not occur in the input.

This commit only checks for the absence of llvm.loop.decrement.i32 which
rules out the presence of the whole sequence and does not involve an
undefined variable.

Reviewed By: dmgreen

Differential Revision: https://reviews.llvm.org/D99591
This commit is contained in:
Thomas Preud'homme 2021-03-28 00:03:37 +00:00
parent 306326c752
commit 0a9f857bf5
1 changed files with 1 additions and 2 deletions
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3
test/Transforms/HardwareLoops/ARM/structure.ll
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@ -60,8 +60,7 @@ do.end:
; CHECK: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
; CHECK: br i1 [[CMP]], label %while.body3.us, label %while.cond1.while.end_crit_edge.us
; CHECK-NOT: [[LOOP_DEC1:%[^ ]+]] = call i1 @llvm.loop.decrement.i32(i32 1)
; CHECK-NOT: br i1 [[LOOP_DEC1]], label %while.cond1.preheader.us, label %while.end7
; CHECK-NOT: %{{[^ ]+}} = call i1 @llvm.loop.decrement.i32(i32 1)
define void @nested(i32* nocapture %A, i32 %N) {
entry: