diff options
Diffstat (limited to 'llvm/test/Transforms/SimplifyCFG/wc-widen-block.ll')
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/wc-widen-block.ll | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/wc-widen-block.ll b/llvm/test/Transforms/SimplifyCFG/wc-widen-block.ll index 79bbefd1266..e889d02a281 100644 --- a/llvm/test/Transforms/SimplifyCFG/wc-widen-block.ll +++ b/llvm/test/Transforms/SimplifyCFG/wc-widen-block.ll @@ -363,6 +363,81 @@ return: ret i32 0 } +define i32 @trivial_wb(i1 %cond_0, i32* %p) { +; CHECK-LABEL: @trivial_wb( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() +; CHECK-NEXT: br i1 [[WIDENABLE_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() + 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 +} + |
