From f26094751ebd8f8603a0e62a8f1aab6a99c932e9 Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Thu, 1 Feb 2024 18:46:47 +0000 Subject: [PATCH] hppa: Fix bug in atomic_storedi_1 pattern The first alternative stores the floating-point status register in the destination. It should store zero. We need to copy %fr0 to another floating-point register to initialize it to zero. 2024-02-01 John David Anglin gcc/ChangeLog: * config/pa/pa.md (atomic_storedi_1): Fix bug in alternative 1. --- gcc/config/pa/pa.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md index 52ad0c3776d..aecdcc98b6a 100644 --- a/gcc/config/pa/pa.md +++ b/gcc/config/pa/pa.md @@ -10723,13 +10723,13 @@ add,l %2,%3,%3\;bv,n %%r0(%3)" (define_insn "atomic_storedi_1" [(set (mem:DI (match_operand:SI 0 "register_operand" "r,r")) (match_operand:DI 1 "reg_or_0_operand" "M,r")) - (clobber (match_scratch:DI 2 "=X,f"))] + (clobber (match_scratch:DI 2 "=f,f"))] "!TARGET_64BIT && !TARGET_SOFT_FLOAT" "@ - {fstds|fstd} %%fr0,0(%0) + fcpy,dbl %%fr0,%2\n\t{fstds|fstd} %2,0(%0) {stws|stw} %1,-16(%%sp)\n\t{stws|stw} %R1,-12(%%sp)\n\t{fldds|fldd} -16(%%sp),%2\n\t{fstds|fstd} %2,0(%0)" [(set_attr "type" "move,move") - (set_attr "length" "4,16")]) + (set_attr "length" "8,16")]) ;; PA 2.0 hardware supports out-of-order execution of loads and stores, so ;; we need memory barriers to enforce program order for memory references -- 2.11.4.GIT