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[PhaseOrdering][NewPM] update test that silently showed bug with SpeculativeExecutionPass; NFC 

See D82735 / rG1a6cebb4d12c744699e23624f8afda5cbe216fe6
This commit is contained in:
Sanjay Patel 2020-06-30 14:20:46 -04:00
parent 0da0437b2a
commit 09b8dbf70c
1 changed files with 4 additions and 13 deletions
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17
llvm/test/Transforms/PhaseOrdering/rotate.ll
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@ -5,20 +5,12 @@
; This should become a single funnel shift through a combination
; of aggressive-instcombine, simplifycfg, and instcombine.
; https://bugs.llvm.org/show_bug.cgi?id=34924
; These are equivalent, but the value name with the new-pm shows a bug -
; this code should not have been converted to a speculative select with
; an intermediate transform.
define i32 @rotl(i32 %a, i32 %b) {
; OLDPM-LABEL: @rotl(
; OLDPM-NEXT: entry:
; OLDPM-NEXT: [[TMP0:%.*]] = tail call i32 @llvm.fshl.i32(i32 [[A:%.*]], i32 [[A]], i32 [[B:%.*]])
; OLDPM-NEXT: ret i32 [[TMP0]]
;
; NEWPM-LABEL: @rotl(
; NEWPM-NEXT: entry:
; NEWPM-NEXT: [[SPEC_SELECT:%.*]] = tail call i32 @llvm.fshl.i32(i32 [[A:%.*]], i32 [[A]], i32 [[B:%.*]])
; NEWPM-NEXT: ret i32 [[SPEC_SELECT]]
; ANY-LABEL: @rotl(
; ANY-NEXT: entry:
; ANY-NEXT: [[COND:%.*]] = tail call i32 @llvm.fshl.i32(i32 [[A:%.*]], i32 [[A]], i32 [[B:%.*]])
; ANY-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %b, 0
@ -35,4 +27,3 @@ end:
%cond = phi i32 [ %or, %rotbb ], [ %a, %entry ]
ret i32 %cond
}