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db43217a24
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. llvm-svn: 277624
30 lines
1.2 KiB
LLVM
30 lines
1.2 KiB
LLVM
; All of these ands and shifts should be folded into rlwimi's
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; RUN: llc -verify-machineinstrs < %s -march=ppc32 -o %t
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; RUN: grep rlwimi %t | count 4
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; RUN: not grep srwi %t
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; RUN: not grep slwi %t
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define i16 @test1(i32 %srcA, i32 %srcB, i32 %alpha) nounwind {
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entry:
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%tmp.1 = shl i32 %srcA, 15 ; <i32> [#uses=1]
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%tmp.4 = and i32 %tmp.1, 32505856 ; <i32> [#uses=1]
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%tmp.6 = and i32 %srcA, 31775 ; <i32> [#uses=1]
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%tmp.7 = or i32 %tmp.4, %tmp.6 ; <i32> [#uses=1]
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%tmp.9 = shl i32 %srcB, 15 ; <i32> [#uses=1]
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%tmp.12 = and i32 %tmp.9, 32505856 ; <i32> [#uses=1]
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%tmp.14 = and i32 %srcB, 31775 ; <i32> [#uses=1]
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%tmp.15 = or i32 %tmp.12, %tmp.14 ; <i32> [#uses=1]
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%tmp.18 = mul i32 %tmp.7, %alpha ; <i32> [#uses=1]
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%tmp.20 = sub i32 32, %alpha ; <i32> [#uses=1]
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%tmp.22 = mul i32 %tmp.15, %tmp.20 ; <i32> [#uses=1]
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%tmp.23 = add i32 %tmp.22, %tmp.18 ; <i32> [#uses=2]
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%tmp.27 = lshr i32 %tmp.23, 5 ; <i32> [#uses=1]
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%tmp.28 = trunc i32 %tmp.27 to i16 ; <i16> [#uses=1]
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%tmp.29 = and i16 %tmp.28, 31775 ; <i16> [#uses=1]
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%tmp.33 = lshr i32 %tmp.23, 20 ; <i32> [#uses=1]
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%tmp.34 = trunc i32 %tmp.33 to i16 ; <i16> [#uses=1]
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%tmp.35 = and i16 %tmp.34, 992 ; <i16> [#uses=1]
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%tmp.36 = or i16 %tmp.29, %tmp.35 ; <i16> [#uses=1]
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ret i16 %tmp.36
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}
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