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| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -lower-widenable-condition < %s | FileCheck %s
; RUN: opt -S -passes=lower-widenable-condition < %s | FileCheck %s
; Basic test case: make sure that all widenable conditions turn into i1 true.
define void @f_0(i1 %cond_0, i1 %cond_1) {
; CHECK-LABEL: @f_0(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], true
; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]]
; CHECK: deopt:
; CHECK-NEXT: unreachable
; CHECK: guarded:
; CHECK-NEXT: [[EXIPLICIT_GUARD_COND4:%.*]] = and i1 [[COND_1:%.*]], true
; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND4]], label [[GUARDED1:%.*]], label [[DEOPT2:%.*]]
; CHECK: deopt2:
; CHECK-NEXT: unreachable
; CHECK: guarded1:
; CHECK-NEXT: ret void
;
entry:
%widenable_cond = call i1 @llvm.experimental.widenable.condition()
%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
br i1 %exiplicit_guard_cond, label %guarded, label %deopt
deopt: ; preds = %entry
unreachable
guarded: ; preds = %entry
%widenable_cond3 = call i1 @llvm.experimental.widenable.condition()
%exiplicit_guard_cond4 = and i1 %cond_1, %widenable_cond3
br i1 %exiplicit_guard_cond4, label %guarded1, label %deopt2
deopt2: ; preds = %guarded
unreachable
guarded1: ; preds = %guarded
ret void
}
; Function Attrs: inaccessiblememonly nounwind
declare i1 @llvm.experimental.widenable.condition() #0
attributes #0 = { inaccessiblememonly nounwind }
|