85 lines
2.8 KiB
LLVM
85 lines
2.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
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; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
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; Show that we are able to extract blocks that contain PHINodes, and selectively
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; store into it's respective block, only using if needed.
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define void @function1(ptr %a, ptr %b) {
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entry:
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%0 = alloca i32, align 4
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%c = load i32, ptr %0, align 4
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br label %test1
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test1:
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%e = load i32, ptr %0, align 4
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br label %first
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test:
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%d = load i32, ptr %0, align 4
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br label %first
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first:
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%1 = phi i32 [ %c, %test ], [ %e, %test1 ]
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ret void
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}
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define void @function2(ptr %a, ptr %b) {
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entry:
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%0 = alloca i32, align 4
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%c = load i32, ptr %0, align 4
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br label %test1
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test1:
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%e = load i32, ptr %0, align 4
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br label %first
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test:
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%d = load i32, ptr %0, align 4
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br label %first
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first:
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ret void
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}
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; CHECK-LABEL: @function1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[DOTCE_LOC]])
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; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[TMP0]], ptr [[DOTCE_LOC]], i32 0)
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; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, ptr [[DOTCE_LOC]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[DOTCE_LOC]])
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; CHECK-NEXT: br label [[FIRST:%.*]]
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; CHECK: first:
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; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ]
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; CHECK-NEXT: ret void
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;
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;
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; CHECK-LABEL: @function2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[TMP0]], ptr null, i32 -1)
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; CHECK-NEXT: br label [[FIRST:%.*]]
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; CHECK: first:
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; CHECK-NEXT: ret void
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;
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;
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; CHECK-LABEL: define internal void @outlined_ir_func_0(
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; CHECK-NEXT: newFuncRoot:
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; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]]
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; CHECK: entry_to_outline:
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; CHECK-NEXT: [[C:%.*]] = load i32, ptr [[TMP0:%.*]], align 4
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; CHECK-NEXT: br label [[TEST1:%.*]]
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; CHECK: test1:
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; CHECK-NEXT: [[E:%.*]] = load i32, ptr [[TMP0]], align 4
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; CHECK-NEXT: br label [[FIRST_SPLIT:%.*]]
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; CHECK: test:
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; CHECK-NEXT: [[D:%.*]] = load i32, ptr [[TMP0]], align 4
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; CHECK-NEXT: br label [[FIRST_SPLIT]]
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; CHECK: first.split:
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; CHECK-NEXT: [[DOTCE:%.*]] = phi i32 [ [[C]], [[TEST:%.*]] ], [ [[E]], [[TEST1]] ]
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; CHECK-NEXT: br label [[FIRST_EXITSTUB:%.*]]
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; CHECK: first.exitStub:
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; CHECK-NEXT: switch i32 [[TMP2:%.*]], label [[FINAL_BLOCK_0:%.*]] [
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; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_0_0:%.*]]
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; CHECK-NEXT: ]
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; CHECK: output_block_0_0:
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; CHECK-NEXT: store i32 [[DOTCE]], ptr [[TMP1:%.*]], align 4
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; CHECK-NEXT: br label [[FINAL_BLOCK_0]]
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; CHECK: final_block_0:
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; CHECK-NEXT: ret void
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;
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