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| author | Kito Cheng <kito.cheng@sifive.com> | 2020-03-03 14:16:34 +0800 |
|---|---|---|
| committer | Kito Cheng <kito.cheng@sifive.com> | 2020-03-04 13:32:59 +0800 |
| commit | 8cc59ac591256f8899e137db7633fd7d1a2164ba (patch) | |
| tree | ba2653ff762794365555d89437a9d96e0be7e1f3 /gcc/config/riscv | |
| parent | 6b3302da9ef26aa11940f8c0dc92bec19e15c09b (diff) | |
| download | gcc-8cc59ac591256f8899e137db7633fd7d1a2164ba.zip gcc-8cc59ac591256f8899e137db7633fd7d1a2164ba.tar.gz gcc-8cc59ac591256f8899e137db7633fd7d1a2164ba.tar.bz2 | |
PR target/93995 ICE in patch_jump_insn, at cfgrtl.c:1290 on riscv64-linux-gnu
Last code gen change of LTGT didn't consider the situation of cbranch with LTGT,
branch only support few compare codes.
gcc/ChangeLog
* config/riscv/riscv.c (riscv_emit_float_compare): Using NE to compare
the result of IOR.
gcc/testsuite/ChangeLog
* gcc.dg/pr93995.c: New.
Diffstat (limited to 'gcc/config/riscv')
| -rw-r--r-- | gcc/config/riscv/riscv.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c index d45b19d..94b5ac0 100644 --- a/gcc/config/riscv/riscv.c +++ b/gcc/config/riscv/riscv.c @@ -2299,9 +2299,10 @@ riscv_emit_float_compare (enum rtx_code *code, rtx *op0, rtx *op1) case LTGT: /* (a < b) | (a > b) */ - *code = IOR; - *op0 = riscv_force_binary (word_mode, LT, cmp_op0, cmp_op1); - *op1 = riscv_force_binary (word_mode, GT, cmp_op0, cmp_op1); + tmp0 = riscv_force_binary (word_mode, LT, cmp_op0, cmp_op1); + tmp1 = riscv_force_binary (word_mode, GT, cmp_op0, cmp_op1); + *op0 = riscv_force_binary (word_mode, IOR, tmp0, tmp1); + *op1 = const0_rtx; break; default: |