Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/SimplifyCFG/guards.ll

@@ -1,100 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -S -simplifycfg < %s | FileCheck %s
-
-declare void @llvm.experimental.guard(i1, ...)
-
-define i32 @f_0(i1 %c) {
-; CHECK-LABEL: @f_0(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ]
-; CHECK-NEXT:    unreachable
-;
-entry:
-  call void(i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ]
-  ret i32 10
-}
-
-define i32 @f_1(i1 %c) {
-; Demonstrate that we (intentionally) do not simplify a guard on undef
-; CHECK-LABEL: @f_1(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    br i1 [[C:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]]
-; CHECK:       true:
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 undef) [ "deopt"() ]
-; CHECK-NEXT:    ret i32 10
-; CHECK:       false:
-; CHECK-NEXT:    ret i32 20
-;
-
-entry:
-  br i1 %c, label %true, label %false
-
-true:
-  call void(i1, ...) @llvm.experimental.guard(i1 undef) [ "deopt"() ]
-  ret i32 10
-
-false:
-  ret i32 20
-}
-
-define i32 @f_2(i1 %c, i32* %buf) {
-; CHECK-LABEL: @f_2(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    br i1 [[C:%.*]], label [[GUARD_BLOCK:%.*]], label [[MERGE_BLOCK:%.*]]
-; CHECK:       guard_block:
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ]
-; CHECK-NEXT:    unreachable
-; CHECK:       merge_block:
-; CHECK-NEXT:    ret i32 50
-;
-entry:
-  br i1 %c, label %guard_block, label %merge_block
-
-guard_block:
-  call void(i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ]
-  %val = load i32, i32* %buf
-  br label %merge_block
-
-merge_block:
-  %to.return = phi i32 [ %val, %guard_block ], [ 50, %entry ]
-  ret i32 %to.return
-
-}
-
-define i32 @f_3(i1* %c, i32* %buf) {
-; CHECK-LABEL: @f_3(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[C0:%.*]] = load volatile i1, i1* [[C:%.*]]
-; CHECK-NEXT:    br i1 [[C0]], label [[GUARD_BLOCK:%.*]], label [[MERGE_BLOCK:%.*]]
-; CHECK:       guard_block:
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ]
-; CHECK-NEXT:    unreachable
-; CHECK:       merge_block:
-; CHECK-NEXT:    [[C1:%.*]] = load volatile i1, i1* [[C]]
-; CHECK-NEXT:    [[DOT:%.*]] = select i1 [[C1]], i32 50, i32 100
-; CHECK-NEXT:    ret i32 [[DOT]]
-;
-entry:
-  %c0 = load volatile i1, i1* %c
-  br i1 %c0, label %guard_block, label %merge_block
-
-guard_block:
-  call void(i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ]
-  %val = load i32, i32* %buf
-  %c2 = load volatile i1, i1* %c
-  br i1 %c2, label %left, label %right
-
-merge_block:
-  %c1 = load volatile i1, i1* %c
-  br i1 %c1, label %left, label %right
-
-left:
-  %val.left = phi i32 [ %val, %guard_block ], [ 50, %merge_block ]
-  ret i32 %val.left
-
-right:
-  %val.right = phi i32 [ %val, %guard_block ], [ 100, %merge_block ]
-  ret i32 %val.right
-
-
-}