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| author | David Chase <drchase@google.com> | 2020-08-17 16:57:22 -0400 |
|---|---|---|
| committer | David Chase <drchase@google.com> | 2020-10-23 18:02:16 +0000 |
| commit | c3fe874f25ff55f73e4422bea7aa0b0e0e268f3e (patch) | |
| tree | 2c0c9185cbabc515fce9e8471ee4282bf2c10a7f /src/cmd/compile/internal/ssa/config.go | |
| parent | ad642727247383079c8546ca365172859641a800 (diff) | |
| download | go-c3fe874f25ff55f73e4422bea7aa0b0e0e268f3e.tar.gz go-c3fe874f25ff55f73e4422bea7aa0b0e0e268f3e.zip | |
cmd/compile: avoid generating CSEs; do all aggregates; maintain debug names
This adds a pass to detect common selection operations,
to avoid generating duplicates. Duplicate offsets are
also detected.
All aggregate types are now handled; there is some freedom in where
expand_calls is run, though it must run before softfloat.
Debug-name-maintenance is now incremental both in decompose builtin
and in expand_calls; it might be good to push this into all the
decompose passes.
(this is a smash of 5 CLs that rewrote some of the same code several
times to deal with phase-ordering problems, and included an abandoned
attempt.)
For #40724.
Change-Id: I2a0c32f20660bf8b99e2bcecd33545d97d2bd3c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/249458
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/cmd/compile/internal/ssa/config.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/config.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/config.go b/src/cmd/compile/internal/ssa/config.go index f1a748309c..cb6f6fe7a1 100644 --- a/src/cmd/compile/internal/ssa/config.go +++ b/src/cmd/compile/internal/ssa/config.go @@ -149,6 +149,7 @@ type Frontend interface { SplitStruct(LocalSlot, int) LocalSlot SplitArray(LocalSlot) LocalSlot // array must be length 1 SplitInt64(LocalSlot) (LocalSlot, LocalSlot) // returns (hi, lo) + SplitSlot(parent *LocalSlot, suffix string, offset int64, t *types.Type) LocalSlot // DerefItab dereferences an itab function // entry, given the symbol of the itab and |