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llvm-6502/test/CodeGen/R600/udivrem64.ll

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R600/SI: Custom lower SI_IF and SI_ELSE to avoid machine verifier errors SI_IF and SI_ELSE are terminators which also produce a value. For these instructions ISel always inserts a COPY to move their value to another basic block. This COPY ends up between SI_(IF|ELSE) and the S_BRANCH* instruction at the end of the block. This breaks MachineBasicBlock::getFirstTerminator() and also the machine verifier which assumes that terminators are grouped together at the end of blocks. To solve this we coalesce the copy away right after ISel to make sure there are no instructions in between terminators at the end of blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207591 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-29 23:12:53 +00:00
;XUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs| FileCheck --check-prefix=SI --check-prefix=FUNC %s
R600: optimize the UDIVREM 64 algorithm This is a squash of several optimization commits: - calculate DIV_Lo and DIV_Hi separately - use BFE_U32 if we are operating on 32bit values - use precomputed constants instead of shifting in UDVIREM - skip the first 32 iterations of udivrem v2: Check whether BFE is supported before using it Patch by: Jan Vesely Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207589 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-29 23:12:46 +00:00
;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG --check-prefix=FUNC %s
;FUNC-LABEL: @test_udiv
;EG: RECIP_UINT
R600: Try to convert BFE back to standard bit ops when possible. This allows existing DAG combines to work on them, and then we can re-match to BFE if necessary during instruction selection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209462 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-22 18:09:12 +00:00
;EG: LSHL {{.*}}, 1,
R600: optimize the UDIVREM 64 algorithm This is a squash of several optimization commits: - calculate DIV_Lo and DIV_Hi separately - use BFE_U32 if we are operating on 32bit values - use precomputed constants instead of shifting in UDVIREM - skip the first 32 iterations of udivrem v2: Check whether BFE is supported before using it Patch by: Jan Vesely Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207589 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-29 23:12:46 +00:00
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;SI: S_ENDPGM
define void @test_udiv(i64 addrspace(1)* %out, i64 %x, i64 %y) {
%result = udiv i64 %x, %y
store i64 %result, i64 addrspace(1)* %out
ret void
}
;FUNC-LABEL: @test_urem
;EG: RECIP_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
;EG: BFE_UINT
R600: Try to convert BFE back to standard bit ops when possible. This allows existing DAG combines to work on them, and then we can re-match to BFE if necessary during instruction selection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209462 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-22 18:09:12 +00:00
;EG: AND_INT {{.*}}, 1,
R600: optimize the UDIVREM 64 algorithm This is a squash of several optimization commits: - calculate DIV_Lo and DIV_Hi separately - use BFE_U32 if we are operating on 32bit values - use precomputed constants instead of shifting in UDVIREM - skip the first 32 iterations of udivrem v2: Check whether BFE is supported before using it Patch by: Jan Vesely Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207589 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-29 23:12:46 +00:00
;SI: S_ENDPGM
define void @test_urem(i64 addrspace(1)* %out, i64 %x, i64 %y) {
%result = urem i64 %x, %y
store i64 %result, i64 addrspace(1)* %out
ret void
}
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