mirror of
https://github.com/c64scene-ar/llvm-6502.git
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036e26bc29
This reverts commit r206628, reapplying r206622 (and r206626). Two tests are failing only on buildbots [1][2]: i.e., I can't reproduce on Darwin, and Chandler can't reproduce on Linux. Asan and valgrind don't tell us anything, but we're hoping the msan bot will catch it. So, I'm applying this again to get more feedback from the bots. I'll leave it in long enough to trigger builds in at least the sanitizer buildbots (it was failing for reasons unrelated to my commit last time it was in), and hopefully a few others.... and then I expect to revert a third time. [1]: http://bb.pgr.jp/builders/ninja-x64-msvc-RA-centos6/builds/1816 [2]: http://llvm-amd64.freebsd.your.org/b/builders/clang-i386-freebsd/builds/18445 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206666 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.6 KiB
LLVM
60 lines
1.6 KiB
LLVM
; RUN: opt < %s -analyze -block-freq | FileCheck %s
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; CHECK-LABEL: Printing analysis {{.*}} for function 'nested_loop_with_branches'
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; CHECK-NEXT: block-frequency-info: nested_loop_with_branches
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define void @nested_loop_with_branches(i32 %a) {
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; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
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entry:
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%v0 = call i1 @foo0(i32 %a)
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br i1 %v0, label %exit, label %outer, !prof !0
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; CHECK-NEXT: outer: float = 12.0,
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outer:
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%i = phi i32 [ 0, %entry ], [ %i.next, %inner.end ], [ %i.next, %no_inner ]
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%i.next = add i32 %i, 1
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%do_inner = call i1 @foo1(i32 %i)
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br i1 %do_inner, label %no_inner, label %inner, !prof !0
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; CHECK-NEXT: inner: float = 36.0,
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inner:
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%j = phi i32 [ 0, %outer ], [ %j.next, %inner.end ]
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%side = call i1 @foo3(i32 %j)
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br i1 %side, label %left, label %right, !prof !0
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; CHECK-NEXT: left: float = 9.0,
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left:
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%v4 = call i1 @foo4(i32 %j)
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br label %inner.end
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; CHECK-NEXT: right: float = 27.0,
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right:
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%v5 = call i1 @foo5(i32 %j)
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br label %inner.end
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; CHECK-NEXT: inner.end: float = 36.0,
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inner.end:
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%stay_inner = phi i1 [ %v4, %left ], [ %v5, %right ]
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%j.next = add i32 %j, 1
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br i1 %stay_inner, label %inner, label %outer, !prof !1
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; CHECK-NEXT: no_inner: float = 3.0,
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no_inner:
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%continue = call i1 @foo6(i32 %i)
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br i1 %continue, label %outer, label %exit, !prof !1
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; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
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exit:
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ret void
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}
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declare i1 @foo0(i32)
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declare i1 @foo1(i32)
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declare i1 @foo2(i32)
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declare i1 @foo3(i32)
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declare i1 @foo4(i32)
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declare i1 @foo5(i32)
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declare i1 @foo6(i32)
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!0 = metadata !{metadata !"branch_weights", i32 1, i32 3}
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!1 = metadata !{metadata !"branch_weights", i32 3, i32 1}
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