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llvm-mirror/test/Other/debugcounter-predicateinfo.ll
Florian Hahn d07051a045 [PredicateInfo] Use custom mangling to support ssa_copy with unnamed types.
This is a workaround and it would be better to fix this generally, but
doing it generally is quite tricky. See D48541 and PR38117.

Doing it in PredicateInfo directly allows us to use the type address to
differentiate different unnamed types, because neither the created
declarations nor the ssa_copy calls should be visible after
PredicateInfo got destroyed.

Reviewers: efriedma, davide

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D49126

llvm-svn: 337828
2018-07-24 14:49:52 +00:00

40 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; REQUIRES: asserts
; RUN: opt -debug-counter=predicateinfo-rename-skip=1,predicateinfo-rename-count=1 -print-predicateinfo -analyze < %s 2>&1 | FileCheck %s
;; Test that, with debug counters on, we don't rename the first info, only the second
define fastcc void @barney() {
; CHECK-LABEL: @barney(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[BB22:%.*]]
; CHECK: bb22:
; CHECK-NEXT: [[TMP23:%.*]] = icmp eq i32 undef, 2
; CHECK: [[TMP23_0:%.*]] = call i1 @llvm.ssa.copy.{{.+}}(i1 [[TMP23]])
; CHECK-NEXT: br i1 [[TMP23]], label [[BB29:%.*]], label [[BB35:%.*]]
; CHECK: bb29:
; CHECK: [[TMP23_0_1:%.*]] = call i1 @llvm.ssa.copy.{{.+}}(i1 [[TMP23_0]])
; CHECK-NEXT: br i1 [[TMP23]], label [[BB33:%.*]], label [[BB35]]
; CHECK: bb33:
; CHECK-NEXT: br i1 [[TMP23_0_1]], label [[BB35]], label [[BB35]]
; CHECK: bb35:
; CHECK-NEXT: unreachable
;
bb:
br label %bb22
bb22: ; preds = %bb21
%tmp23 = icmp eq i32 undef, 2
br i1 %tmp23, label %bb29, label %bb35
bb29: ; preds = %bb28
;; We will not rename this one (we will still generate a copy of a copy for the next one)
br i1 %tmp23, label %bb33, label %bb35
bb33: ; preds = %bb31
;; We will rename this one
br i1 %tmp23, label %bb35, label %bb35
bb35: ; preds = %bb33, %bb29, %bb22
unreachable
}