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authorJeffrey A Law <law@cygnus.com>1998-11-09 02:12:55 +0000
committerJeff Law <law@gcc.gnu.org>1998-11-08 19:12:55 -0700
commita3a24aa619357792a6d06c38156b898350547b45 (patch)
treee4c0cb38cc7057b664d7139c8530cfefbe2c26ad /gcc
parentbfa88f2d891aa26554afecebd63887cb92bb513f (diff)
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reload1.c (delete_output_reload_insn): If a pseudo is set multiple times, then it can not be completely replaced.
* reload1.c (delete_output_reload_insn): If a pseudo is set multiple times, then it can not be completely replaced. Fixes mis-compilation of wave5 in spec92. From-SVN: r23581
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/reload1.c1
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1ff5cc4..3d40451 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Mon Nov 9 03:06:24 1998 Jeffrey A Law (law@cygnus.com)
+
+ * reload1.c (delete_output_reload_insn): If a pseudo is set multiple
+ times, then it can not be completely replaced.
+
Mon Nov 9 00:39:02 1998 Richard Henderson <rth@cygnus.com>
* alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.
diff --git a/gcc/reload1.c b/gcc/reload1.c
index 0d587ae..ea8bc1f 100644
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -7931,6 +7931,7 @@ delete_output_reload (insn, j, last_reload_reg)
and forget we had a stack slot for the pseudo. */
if (reload_out[j] != reload_in[j]
&& REG_N_DEATHS (REGNO (reg)) == 1
+ && REG_N_SETS (REGNO (reg)) == 1
&& REG_BASIC_BLOCK (REGNO (reg)) >= 0
&& find_regno_note (insn, REG_DEAD, REGNO (reg)))
{