forked from OSchip/llvm-project
452 lines
16 KiB
LLVM
452 lines
16 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=simplify-cfg -S < %s | FileCheck %s
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define i32 @basic(i1 %cond_0, i32* %p) {
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; CHECK-LABEL: @basic(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]]
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; CHECK-NEXT: [[COND_1:%.*]] = icmp eq i32 [[V]], 0
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; CHECK-NEXT: br i1 [[COND_1]], label [[RETURN:%.*]], label [[DEOPT]], !prof !0
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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%v = load i32, i32* %p
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%cond_1 = icmp eq i32 %v, 0
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br i1 %cond_1, label %return, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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return:
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ret i32 0
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}
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define i32 @mergeable(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @mergeable(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND_NOT:%.*]] = xor i1 [[EXIPLICIT_GUARD_COND]], true
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; CHECK-NEXT: [[COND_1_NOT:%.*]] = xor i1 [[COND_1:%.*]], true
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; CHECK-NEXT: [[BRMERGE:%.*]] = or i1 [[EXIPLICIT_GUARD_COND_NOT]], [[COND_1_NOT]]
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; CHECK-NEXT: br i1 [[BRMERGE]], label [[DEOPT:%.*]], label [[RETURN:%.*]], !prof !1
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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br i1 %cond_1, label %return, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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return:
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ret i32 0
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}
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define i32 @basic_swapped_branch(i1 %cond_0, i32* %p) {
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; CHECK-LABEL: @basic_swapped_branch(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]]
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; CHECK-NEXT: [[COND_1:%.*]] = icmp eq i32 [[V]], 0
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; CHECK-NEXT: br i1 [[COND_1]], label [[DEOPT]], label [[RETURN:%.*]], !prof !0
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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%v = load i32, i32* %p
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%cond_1 = icmp eq i32 %v, 0
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br i1 %cond_1, label %deopt2, label %return, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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return:
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ret i32 0
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}
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define i32 @todo_sink_side_effect(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @todo_sink_side_effect(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: call void @unknown()
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; CHECK-NEXT: br i1 [[COND_1:%.*]], label [[RETURN:%.*]], label [[DEOPT2:%.*]], !prof !0
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; CHECK: deopt2:
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; CHECK-NEXT: [[DEOPTRET2:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET2]]
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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call void @unknown()
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br i1 %cond_1, label %return, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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return:
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ret i32 0
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}
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define i32 @neg_unsinkable_side_effect(i1 %cond_0) {
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; CHECK-LABEL: @neg_unsinkable_side_effect(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: [[V:%.*]] = call i32 @unknown_i32()
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; CHECK-NEXT: [[COND_1:%.*]] = icmp eq i32 [[V]], 0
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; CHECK-NEXT: br i1 [[COND_1]], label [[RETURN:%.*]], label [[DEOPT2:%.*]], !prof !0
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; CHECK: deopt2:
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; CHECK-NEXT: [[DEOPTRET2:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET2]]
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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%v = call i32 @unknown_i32()
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%cond_1 = icmp eq i32 %v, 0
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br i1 %cond_1, label %return, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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return:
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ret i32 0
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}
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define i32 @neg_inf_loop(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @neg_inf_loop(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: call void @unknown()
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; CHECK-NEXT: br i1 [[COND_1:%.*]], label [[RETURN:%.*]], label [[DEOPT]], !prof !0
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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call void @unknown()
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br i1 %cond_1, label %return, label %deopt, !prof !0
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return:
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ret i32 0
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}
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define i32 @todo_phi(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @todo_phi(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"(i32 [[PHI]]) ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: br i1 [[COND_1:%.*]], label [[RETURN:%.*]], label [[DEOPT2:%.*]], !prof !0
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; CHECK: deopt2:
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; CHECK-NEXT: [[DEOPTRET2:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET2]]
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%phi = phi i32 [0, %entry]
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"(i32 %phi) ]
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ret i32 %deoptret
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guarded:
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br i1 %cond_1, label %return, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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return:
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ret i32 0
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}
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define i32 @neg_loop(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @neg_loop(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[GUARDED:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: call void @unknown()
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; CHECK-NEXT: br i1 [[COND_1:%.*]], label [[LOOP:%.*]], label [[DEOPT2:%.*]], !prof !0
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; CHECK: deopt2:
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; CHECK-NEXT: [[DEOPTRET2:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET2]]
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;
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entry:
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br label %guarded
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loop:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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call void @unknown()
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br i1 %cond_1, label %loop, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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}
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; This one is subtle - We can't widen only one branch use of the
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; widenable condition as two branches are correlated. We'd have to
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; widen them *both*.
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define i32 @neg_correlated(i1 %cond_0, i1 %cond_1, i32* %p) {
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; CHECK-LABEL: @neg_correlated(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND2:%.*]] = and i1 [[COND_1:%.*]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND2]], label [[GUARDED2:%.*]], label [[DEOPT2:%.*]], !prof !0
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; CHECK: deopt2:
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; CHECK-NEXT: [[DEOPTRET2:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET2]]
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; CHECK: guarded2:
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]]
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; CHECK-NEXT: [[COND_2:%.*]] = icmp eq i32 [[V]], 0
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; CHECK-NEXT: br i1 [[COND_2]], label [[RETURN:%.*]], label [[DEOPT3:%.*]], !prof !0
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; CHECK: deopt3:
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; CHECK-NEXT: [[DEOPTRET3:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET3]]
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; CHECK: return:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt:
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%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret
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guarded:
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%exiplicit_guard_cond2 = and i1 %cond_1, %widenable_cond
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br i1 %exiplicit_guard_cond2, label %guarded2, label %deopt2, !prof !0
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deopt2:
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%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret2
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guarded2:
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%v = load i32, i32* %p
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%cond_2 = icmp eq i32 %v, 0
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br i1 %cond_2, label %return, label %deopt3, !prof !0
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deopt3:
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%deoptret3 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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ret i32 %deoptret3
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return:
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ret i32 0
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}
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define i32 @trivial_wb(i1 %cond_0, i32* %p) {
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; CHECK-LABEL: @trivial_wb(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: br i1 [[WIDENABLE_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
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; CHECK-NEXT: ret i32 [[DEOPTRET]]
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; CHECK: guarded:
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]]
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; CHECK-NEXT: [[COND_1:%.*]] = icmp eq i32 [[V]], 0
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; CHECK-NEXT: br i1 [[COND_1]], label [[RETURN:%.*]], label [[DEOPT]], !prof !0
|
|
; CHECK: return:
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
%widenable_cond = call i1 @llvm.experimental.widenable.condition()
|
|
br i1 %widenable_cond, label %guarded, label %deopt, !prof !0
|
|
|
|
deopt:
|
|
%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
|
|
ret i32 %deoptret
|
|
|
|
guarded:
|
|
%v = load i32, i32* %p
|
|
%cond_1 = icmp eq i32 %v, 0
|
|
br i1 %cond_1, label %return, label %deopt2, !prof !0
|
|
|
|
deopt2:
|
|
%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
|
|
ret i32 %deoptret2
|
|
|
|
return:
|
|
ret i32 0
|
|
}
|
|
|
|
|
|
define i32 @swapped_wb(i1 %cond_0, i32* %p) {
|
|
; CHECK-LABEL: @swapped_wb(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
|
|
; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WIDENABLE_COND]], [[COND_0:%.*]]
|
|
; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
|
|
; CHECK: deopt:
|
|
; CHECK-NEXT: [[DEOPTRET:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
|
|
; CHECK-NEXT: ret i32 [[DEOPTRET]]
|
|
; CHECK: guarded:
|
|
; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]]
|
|
; CHECK-NEXT: [[COND_1:%.*]] = icmp eq i32 [[V]], 0
|
|
; CHECK-NEXT: br i1 [[COND_1]], label [[RETURN:%.*]], label [[DEOPT]], !prof !0
|
|
; CHECK: return:
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
%widenable_cond = call i1 @llvm.experimental.widenable.condition()
|
|
%exiplicit_guard_cond = and i1 %widenable_cond, %cond_0
|
|
br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
|
|
|
|
deopt:
|
|
%deoptret = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
|
|
ret i32 %deoptret
|
|
|
|
guarded:
|
|
%v = load i32, i32* %p
|
|
%cond_1 = icmp eq i32 %v, 0
|
|
br i1 %cond_1, label %return, label %deopt2, !prof !0
|
|
|
|
deopt2:
|
|
%deoptret2 = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ]
|
|
ret i32 %deoptret2
|
|
|
|
return:
|
|
ret i32 0
|
|
}
|
|
|
|
|
|
|
|
|
|
declare void @unknown()
|
|
declare i32 @unknown_i32()
|
|
|
|
declare i1 @llvm.experimental.widenable.condition()
|
|
declare i32 @llvm.experimental.deoptimize.i32(...)
|
|
|
|
!0 = !{!"branch_weights", i32 1048576, i32 1}
|
|
!1 = !{i32 1, i32 -2147483648}
|