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llvm-project/llvm/test/Transforms/SCCP/switch-multiple-undef.ll

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Recommit "[SCCP] Remove forcedconstant, go to overdefined instead" This includes a fix for cases where things get marked as overdefined in ResolvedUndefsIn, but we later discover a constant. To avoid crashing, we consistently bail out on overdefined values in the visitors. This is similar to the previous behavior with forcedconstant. This reverts the revert commit 02b72f564c8be0b4f4337d5c4a3fcf7e8018a818.
2020-02-14 07:05:50 +08:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; RUN: opt -S -ipsccp < %s | FileCheck %s
declare void @foo()
declare void @goo()
declare void @patatino()
define void @test1(i32 %t) {
Recommit "[SCCP] Remove forcedconstant, go to overdefined instead" This includes a fix for cases where things get marked as overdefined in ResolvedUndefsIn, but we later discover a constant. To avoid crashing, we consistently bail out on overdefined values in the visitors. This is similar to the previous behavior with forcedconstant. This reverts the revert commit 02b72f564c8be0b4f4337d5c4a3fcf7e8018a818.
2020-02-14 07:05:50 +08:00
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[CHOICE:%.*]] = icmp eq i32 undef, -1
; CHECK-NEXT: switch i1 [[CHOICE]], label [[FIRST:%.*]] [
; CHECK-NEXT: i1 false, label [[SECOND:%.*]]
; CHECK-NEXT: i1 true, label [[THIRD:%.*]]
; CHECK-NEXT: ]
; CHECK: first:
; CHECK-NEXT: call void @foo()
; CHECK-NEXT: ret void
; CHECK: second:
; CHECK-NEXT: call void @goo()
; CHECK-NEXT: ret void
; CHECK: third:
; CHECK-NEXT: call void @patatino()
; CHECK-NEXT: ret void
;
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
%choice = icmp eq i32 undef, -1
switch i1 %choice, label %first [i1 0, label %second
Recommit "[SCCP] Remove forcedconstant, go to overdefined instead" This includes a fix for cases where things get marked as overdefined in ResolvedUndefsIn, but we later discover a constant. To avoid crashing, we consistently bail out on overdefined values in the visitors. This is similar to the previous behavior with forcedconstant. This reverts the revert commit 02b72f564c8be0b4f4337d5c4a3fcf7e8018a818.
2020-02-14 07:05:50 +08:00
i1 1, label %third]
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
first:
call void @foo()
ret void
second:
call void @goo()
ret void
third:
call void @patatino()
ret void
}