4fb8e0b862
The test was a part of the revision D81499 and should have been
added with commit 707836ed4e.
Reviewed By: yamauchi, wenlei
Differential Revision: https://reviews.llvm.org/D81499
31 lines
692 B
LLVM
31 lines
692 B
LLVM
; RUN: opt -jump-threading -S < %s | FileCheck %s
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; RUN: opt -passes=jump-threading -S < %s | FileCheck %s
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; Check that all zero branch weights do not cause a crash.
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define void @zero_branch_weights(i32 %tmp, i32 %tmp3) {
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bb:
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%tmp1 = icmp eq i32 %tmp, 1
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br i1 %tmp1, label %bb5, label %bb2
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; CHECK-NOT: br i1 %tmp1,{{.*}} !prof
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bb2:
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%tmp4 = icmp ne i32 %tmp3, 1
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br label %bb5
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; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF:[0-9]+]]
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bb5:
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%tmp6 = phi i1 [ false, %bb ], [ %tmp4, %bb2 ]
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br i1 %tmp6, label %bb8, label %bb7, !prof !{!"branch_weights", i32 0, i32 0}
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bb7:
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br label %bb9
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bb8:
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br label %bb9
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bb9:
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ret void
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}
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;CHECK: ![[PROF]] = !{!"branch_weights", i32 0, i32 0}
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