69 lines
2.5 KiB
LLVM
69 lines
2.5 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -S -verify-memoryssa -passes=loop-sink < %s | FileCheck %s
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; Make sure that we handle PHI-uses correctly during loop sink if the most profitable sink
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; destination also has a PHI of another use.
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%struct.blam = type { %struct.blam.0, [32 x i8] }
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%struct.blam.0 = type { ptr, i64 }
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define internal void @wibble() !prof !0 {
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; CHECK-LABEL: define internal void @wibble
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; CHECK-SAME: () !prof [[PROF0:![0-9]+]] {
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: br i1 false, label [[BB2:%.*]], label [[BB3:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: ret void
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; CHECK: bb3:
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; CHECK-NEXT: switch i32 0, label [[BB5:%.*]] [
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; CHECK-NEXT: i32 1, label [[BB4:%.*]]
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; CHECK-NEXT: i32 0, label [[BB1]]
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; CHECK-NEXT: ], !prof [[PROF1:![0-9]+]]
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; CHECK: bb4:
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; CHECK-NEXT: br i1 false, label [[BB3]], label [[BB6:%.*]]
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; CHECK: bb5:
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; CHECK-NEXT: [[GETELEMENTPTR:%.*]] = getelementptr [[STRUCT_BLAM:%.*]], ptr null, i64 0, i32 1
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; CHECK-NEXT: br i1 false, label [[BB6]], label [[BB7:%.*]]
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; CHECK: bb6:
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; CHECK-NEXT: br label [[BB7]]
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; CHECK: bb7:
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; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ null, [[BB6]] ], [ [[GETELEMENTPTR]], [[BB5]] ]
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; CHECK-NEXT: [[GETELEMENTPTR1:%.*]] = getelementptr [[STRUCT_BLAM]], ptr null, i64 0, i32 1
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; CHECK-NEXT: store ptr [[GETELEMENTPTR1]], ptr null, align 8
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; CHECK-NEXT: br label [[BB1]]
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;
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bb:
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%getelementptr = getelementptr %struct.blam, ptr null, i64 0, i32 1
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br label %bb1
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bb1: ; preds = %bb7, %bb3, %bb
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br i1 false, label %bb2, label %bb3
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bb2: ; preds = %bb1
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ret void
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bb3: ; preds = %bb4, %bb1
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switch i32 0, label %bb5 [
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i32 1, label %bb4
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i32 0, label %bb1
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], !prof !1
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bb4: ; preds = %bb3
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br i1 false, label %bb3, label %bb6
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bb5: ; preds = %bb3
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br i1 false, label %bb6, label %bb7
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bb6: ; preds = %bb5, %bb4
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br label %bb7
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bb7: ; preds = %bb6, %bb5
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%phi = phi ptr [ null, %bb6 ], [ %getelementptr, %bb5 ]
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store ptr %getelementptr, ptr null, align 8
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br label %bb1
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}
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!0 = !{!"function_entry_count", i64 1}
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!1 = !{!"branch_weights", i32 1, i32 188894, i32 287400}
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