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| author | Alan Modra <amodra@gmail.com> | 2020-04-01 13:34:47 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-09-24 12:52:02 +0930 |
| commit | 0075cea0fdccc2efb781f4f3c924007de37a3417 (patch) | |
| tree | 36b8de216b167b7d303f42b07512a5be98a1ba31 /gcc | |
| parent | 08cd8d5929eac84b27788d8483fd75ab7ad13129 (diff) | |
| download | gcc-0075cea0fdccc2efb781f4f3c924007de37a3417.zip gcc-0075cea0fdccc2efb781f4f3c924007de37a3417.tar.gz gcc-0075cea0fdccc2efb781f4f3c924007de37a3417.tar.bz2 | |
[RS6000] Count rldimi constant insns
rldimi is generated by rs6000_emit_set_long_const when the high and
low 32 bits of a 64-bit constant are equal.
PR target/93012
* config/rs6000/rs6000.c (num_insns_constant_gpr): Count rldimi
constants correctly.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 6f204ca..5f4e292 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -5731,7 +5731,7 @@ direct_return (void) /* Helper for num_insns_constant. Calculate number of instructions to load VALUE to a single gpr using combinations of addi, addis, ori, - oris and sldi instructions. */ + oris, sldi and rldimi instructions. */ static int num_insns_constant_gpr (HOST_WIDE_INT value) @@ -5759,7 +5759,7 @@ num_insns_constant_gpr (HOST_WIDE_INT value) high >>= 1; - if (low == 0) + if (low == 0 || low == high) return num_insns_constant_gpr (high) + 1; else if (high == 0) return num_insns_constant_gpr (low) + 1; |