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| author | Uros Bizjak <uros@gcc.gnu.org> | 2013-11-06 20:37:12 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2013-11-06 20:37:12 +0100 |
| commit | 992147ee6bc698a938feb38546ca25ce8b977651 (patch) | |
| tree | cf340a333dfb0fe4b2d672ec9e1a479acf1c29e6 /gcc/config/i386/i386.c | |
| parent | b6e168f33a07cd23b7e760bab8e22aa0b907e8aa (diff) | |
| download | gcc-992147ee6bc698a938feb38546ca25ce8b977651.zip gcc-992147ee6bc698a938feb38546ca25ce8b977651.tar.gz gcc-992147ee6bc698a938feb38546ca25ce8b977651.tar.bz2 | |
re PR target/59021 (new vzeroupper instructions generated with -mavx)
PR target/59021
* config/i386/i386.c (ix86_avx_u128_mode_needed): Require
AVX_U128_DIRTY mode for call_insn RTXes that use AVX256 registers.
(ix86_avx_u128_mode_needed): Return AVX_U128_DIRTY mode for call_insn
RTXes that return in AVX256 register.
testsuite/ChangeLog:
PR target/59021
* gcc.target/i386/pr59021.c: New test.
From-SVN: r204464
Diffstat (limited to 'gcc/config/i386/i386.c')
| -rw-r--r-- | gcc/config/i386/i386.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 0680dea..53e04c4 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -15708,7 +15708,7 @@ ix86_avx_u128_mode_needed (rtx insn) rtx arg = XEXP (XEXP (link, 0), 0); if (ix86_check_avx256_register (&arg, NULL)) - return AVX_U128_ANY; + return AVX_U128_DIRTY; } } @@ -15828,8 +15828,8 @@ ix86_avx_u128_mode_after (int mode, rtx insn) { bool avx_reg256_found = false; note_stores (pat, ix86_check_avx256_stores, &avx_reg256_found); - if (!avx_reg256_found) - return AVX_U128_CLEAN; + + return avx_reg256_found ? AVX_U128_DIRTY : AVX_U128_CLEAN; } /* Otherwise, return current mode. Remember that if insn |