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38caf19333
Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277624 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
874 B
LLVM
29 lines
874 B
LLVM
; All of these ands and shifts should be folded into rlw[i]nm instructions
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; RUN: llc -verify-machineinstrs < %s -march=ppc32 -o %t
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; RUN: not grep and %t
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; RUN: not grep srawi %t
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; RUN: not grep srwi %t
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; RUN: not grep slwi %t
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; RUN: grep rlwnm %t | count 1
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; RUN: grep rlwinm %t | count 1
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define i32 @test1(i32 %X, i32 %Y) {
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entry:
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%tmp = trunc i32 %Y to i8 ; <i8> [#uses=2]
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%tmp1 = shl i32 %X, %Y ; <i32> [#uses=1]
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%tmp2 = sub i32 32, %Y ; <i8> [#uses=1]
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%tmp3 = lshr i32 %X, %tmp2 ; <i32> [#uses=1]
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%tmp4 = or i32 %tmp1, %tmp3 ; <i32> [#uses=1]
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%tmp6 = and i32 %tmp4, 127 ; <i32> [#uses=1]
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ret i32 %tmp6
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}
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define i32 @test2(i32 %X) {
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entry:
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%tmp1 = lshr i32 %X, 27 ; <i32> [#uses=1]
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%tmp2 = shl i32 %X, 5 ; <i32> [#uses=1]
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%tmp2.masked = and i32 %tmp2, 96 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp1, %tmp2.masked ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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