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7c730e7790
do not double-count the duplicate instructions by counting once from the beginning and again from the end. Keep track of where the duplicates from the beginning ended and don't go past that point when counting duplicates at the end. Radar 8589805. This change causes one of the MC/ARM/simple-fp-encoding tests to produce different (better!) code without the vmovne instruction being tested. I changed the test to produce vmovne and vmoveq instructions but moving between register files in the opposite direction. That's not quite the same but predicated versions of those instructions weren't being tested before, so at least the test coverage is not any worse, just different. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117333 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
598 B
LLVM
32 lines
598 B
LLVM
; RUN: llc < %s -mtriple=armv6-apple-darwin -mcpu=arm1136jf-s | FileCheck %s
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; Radar 8589805: Counting the number of microcoded operations, such as for an
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; LDM instruction, was causing an assertion failure because the microop count
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; was being treated as an instruction count.
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; CHECK: ldmia
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; CHECK: ldmia
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; CHECK: ldmia
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; CHECK: ldmia
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define i32 @test(i32 %x) {
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entry:
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%0 = tail call signext i16 undef(i32* undef)
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switch i32 undef, label %bb3 [
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i32 0, label %bb4
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i32 1, label %bb1
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i32 2, label %bb2
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]
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bb1:
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ret i32 1
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bb2:
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ret i32 2
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bb3:
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ret i32 1
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bb4:
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ret i32 3
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}
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