d291f1fd09
This is part of effort in removing -enable-new-pm flag. As a prat of this effort one of example passes SimplifyCFG must be ported to new PM which will allow to remove the flag calls from the tests that are using this pass. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D137103
71 lines
1.4 KiB
LLVM
71 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt %loadexampleirtransforms -passes=tut-simplifycfg -tut-simplifycfg-version=v1 -S < %s | FileCheck %s
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; RUN: opt %loadexampleirtransforms -passes=tut-simplifycfg -tut-simplifycfg-version=v2 -S < %s | FileCheck %s
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; RUN: opt %loadexampleirtransforms -passes=tut-simplifycfg -tut-simplifycfg-version=v3 -S < %s | FileCheck %s
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define i32 @phi_cond_branch_eliminated() {
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; CHECK-LABEL: @phi_cond_branch_eliminated(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 20
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;
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entry:
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br i1 true, label %bb.2, label %bb.3
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bb.2:
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br label %bb.3
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bb.3:
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%ret = phi i32 [ 10, %entry ], [ 20, %bb.2 ]
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ret i32 %ret
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}
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define i32 @phi_removed() {
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; CHECK-LABEL: @phi_removed(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[BB_3:%.*]]
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; CHECK: bb.3:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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br i1 false, label %bb.2, label %bb.3
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bb.2:
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%pv = phi i32 [ 10, %entry ]
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br label %bb.3
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bb.3:
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ret i32 0
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}
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define i32 @phi_in_dead_region() {
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; CHECK-LABEL: @phi_in_dead_region(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 1
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;
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entry:
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ret i32 1
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bb.1:
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br i1 true, label %bb.2, label %bb.3
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bb.2:
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br label %bb.3
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bb.3:
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%ret = phi i32 [ 10, %bb.1 ], [ 20, %bb.2 ]
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ret i32 %ret
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}
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define i32 @phi_in_mergable_blocks() {
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; CHECK-LABEL: @phi_in_mergable_blocks(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 10
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;
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entry:
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br label %bb.1
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bb.1:
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%pv = phi i32 [ 10, %entry ]
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ret i32 %pv
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}
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