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| author | Andrew Stubbs <ams@codesourcery.com> | 2020-03-19 17:43:12 +0000 |
|---|---|---|
| committer | Andrew Stubbs <ams@codesourcery.com> | 2020-04-24 16:55:12 +0100 |
| commit | 01f5d5e8f9bc4df0b99dd5b825b39e10af543304 (patch) | |
| tree | 2fb1e81237e962995be05c83beffdf1182b82df9 | |
| parent | cf3a909cf45514cd294e483a7c86ef16c82ffa96 (diff) | |
| download | gcc-01f5d5e8f9bc4df0b99dd5b825b39e10af543304.zip gcc-01f5d5e8f9bc4df0b99dd5b825b39e10af543304.tar.gz gcc-01f5d5e8f9bc4df0b99dd5b825b39e10af543304.tar.bz2 | |
amdgcn: Split 64-bit constant loads post-reload
This helps avoid spilling 64-bit constant loads to stack by simplifying the
code that LRA sees.
2020-04-24 Andrew Stubbs <ams@codesourcery.com>
gcc/
* config/gcn/gcn.md (*mov<mode>_insn): Only split post-reload.
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/gcn/gcn.md | 8 |
2 files changed, 9 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d402ae6..2db3413 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2020-04-24 Andrew Stubbs <ams@codesourcery.com> + + * config/gcn/gcn.md (*mov<mode>_insn): Only split post-reload. + 2020-04-24 Richard Sandiford <richard.sandiford@arm.com> * config/aarch64/arm_sve.h: Add a comment. diff --git a/gcc/config/gcn/gcn.md b/gcc/config/gcn/gcn.md index 702ba55..8f59377 100644 --- a/gcc/config/gcn/gcn.md +++ b/gcc/config/gcn/gcn.md @@ -615,9 +615,11 @@ ds_read_b64\t%0, %A1%O1\;s_waitcnt\tlgkmcnt(0) global_load_dwordx2\t%0, %A1%O1%g1\;s_waitcnt\tvmcnt(0) global_store_dwordx2\t%A0, %1%O0%g0" - "(reload_completed && !MEM_P (operands[0]) && !MEM_P (operands[1]) - && !gcn_sgpr_move_p (operands[0], operands[1])) - || (GET_CODE (operands[1]) == CONST_INT && !gcn_constant64_p (operands[1]))" + "reload_completed + && ((!MEM_P (operands[0]) && !MEM_P (operands[1]) + && !gcn_sgpr_move_p (operands[0], operands[1])) + || (GET_CODE (operands[1]) == CONST_INT + && !gcn_constant64_p (operands[1])))" [(set (match_dup 0) (match_dup 1)) (set (match_dup 2) (match_dup 3))] { |