Petar Jovanovic 783ea2aeed [Mips][FastISel] Do not duplicate condition while lowering branches ...

This change fixes the issue that arises when we duplicate condition from
the predecessor block. If the condition's arguments are not considered alive
across the blocks, fast regalloc gets confused and starts generating reloads
from the slots that have never been spilled to. This change also leads to
smaller code given that, unlike on architectures with condition codes, on
Mips we can branch directly on register value, thus we gain nothing by
duplication.

Patch by Dragan Mladjenovic.

Differential Revision: https://reviews.llvm.org/D48642


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336084 91177308-0d34-0410-b5e6-96231b3b80d8

2018-07-02 08:56:57 +00:00

..

br1.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

bswap1.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

callabi.ll

[FastISel] Disable local value sinking by default

2018-04-11 16:03:07 +00:00

check-disabled-mcpus.ll

[CodeGen] Pass SDAG an ORE, and replace FastISel stats with remarks.

2017-03-30 17:49:58 +00:00

constexpr-address.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

div1.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

double-arg.ll

[mips][FastISel] Instantiate the MipsFastISel class only for targets that support FastISel.

2016-10-18 13:05:42 +00:00

fast-isel-softfloat-lower-args.ll

[mips][fastisel] Consider soft-float an unsupported floating point mode

2016-10-04 10:35:07 +00:00

fastalloca.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

fastcc-miss.ll

[CodeGen] Pass SDAG an ORE, and replace FastISel stats with remarks.

2017-03-30 17:49:58 +00:00

fpcmpa.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

fpext.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

fpintconv.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

fptrunc.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

icmpa.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

icmpbr1.ll

[Mips][FastISel] Do not duplicate condition while lowering branches

2018-07-02 08:56:57 +00:00

loadstore2.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

loadstoreconv.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

loadstrconst.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

logopm.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

memtest1.ll

Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)

2018-01-19 17:13:12 +00:00

mul1.ll

[mips][FastISel] Remove hidden mips-fast-isel option.

2015-07-30 12:39:33 +00:00

nullvoid.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

overflt.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

rem1.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

retabi.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

sel1.ll

[Mips] Return true in enableMultipleCopyHints().

2018-02-23 08:30:15 +00:00

shftopm.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

shift.ll

[llvm-objdump] Support detection of feature bits from the object and implement this for Mips.

2016-06-16 09:17:03 +00:00

simplestore.ll

[FastISel] Disable local value sinking by default

2018-04-11 16:03:07 +00:00

simplestorefp1.ll

Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.

2016-07-29 12:27:28 +00:00

simplestorei.ll

[FastISel] Disable local value sinking by default

2018-04-11 16:03:07 +00:00

stackloadstore.ll

[mips] Fix unsigned/signed type error

2016-11-16 11:29:07 +00:00