57 lines
2.1 KiB
LLVM
57 lines
2.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt -S -passes="jump-threading" < %s 2>&1 | FileCheck %s
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declare void @foobar()
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define i32 @func0(i32 %a0, i32 %a1) !prof !0 {
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; CHECK-LABEL: @func0(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP0:%.*]] = icmp ne i32 [[A0:%.*]], 0
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; CHECK-NEXT: [[CX:%.*]] = icmp eq i32 [[A0]], 42
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; CHECK-NEXT: br i1 [[CMP0]], label [[BB_JOIN:%.*]], label [[TEST2:%.*]], !prof [[PROF1:![0-9]+]]
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; CHECK: test2:
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; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[A1:%.*]], 0
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; CHECK-NEXT: br i1 [[CMP1]], label [[BB_JOIN_THREAD:%.*]], label [[TEST2_FALSE:%.*]], !prof [[PROF2:![0-9]+]]
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; CHECK: test2_false:
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; CHECK-NEXT: call void @foobar()
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; CHECK-NEXT: br label [[TMP0:%.*]]
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; CHECK: bb_join:
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; CHECK-NEXT: [[C:%.*]] = phi i1 [ [[CX]], [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[COND_FR:%.*]] = freeze i1 [[C]]
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; CHECK-NEXT: br i1 [[COND_FR]], label [[BB_JOIN_THREAD]], label [[TMP0]], !prof [[PROF3:![0-9]+]]
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; CHECK: bb_join.thread:
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; CHECK-NEXT: br label [[TMP0]]
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; CHECK: 0:
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; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ 42, [[BB_JOIN_THREAD]] ], [ 7, [[BB_JOIN]] ], [ 7, [[TEST2_FALSE]] ]
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%cmp0 = icmp ne i32 %a0, 0
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%cx = icmp eq i32 %a0, 42
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br i1 %cmp0, label %bb_join, label %test2, !prof !1
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test2:
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%cmp1 = icmp ne i32 %a1, 0
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br i1 %cmp1, label %bb_join, label %test2_false, !prof !2
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test2_false:
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call void @foobar()
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br label %bb_join
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bb_join:
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%c = phi i1 [%cx, %entry], [true, %test2], [%cx, %test2_false]
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%val = select i1 %c, i32 42, i32 7, !prof !3
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ret i32 %val
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}
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!0 = !{!"function_entry_count", i64 1000}
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!1 = !{!"branch_weights", i32 400, i32 600}
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!2 = !{!"branch_weights", i32 300, i32 300}
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!3 = !{!"branch_weights", i32 500, i32 500}
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;.
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; CHECK: [[META0:![0-9]+]] = !{!"function_entry_count", i64 1000}
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; CHECK: [[PROF1]] = !{!"branch_weights", i32 400, i32 600}
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; CHECK: [[PROF2]] = !{!"branch_weights", i32 300, i32 300}
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; CHECK: [[PROF3]] = !{!"branch_weights", i32 613566756, i32 1533916892}
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;.
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