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re PR target/66813 (gcc.target/i386/asm-flag-5.c failed with -march=pentium) 

PR target/66813
	* config/i386/i386.c (ix86_md_asm_adjust): Emit movstrictqi
	sequence for TARGET_ZERO_EXTEND_WITH_AND targets.

testsuite/ChangeLog:

	PR target/66813
	* gcc.target/i386/pr66813.c: New test.

From-SVN: r225662
This commit is contained in:
Uros Bizjak 2015-07-10 13:56:48 +02:00 committed by Uros Bizjak
parent d26fc9797b
commit d7cb4840b7
4 changed files with 27 additions and 1 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2015-07-10 Uros Bizjak <ubizjak@gmail.com>
PR target/66813
* config/i386/i386.c (ix86_md_asm_adjust): Emit movstrictqi
sequence for TARGET_ZERO_EXTEND_WITH_AND targets.
2015-07-10 Jakub Jelinek <jakub@redhat.com>
PR middle-end/66820

12
gcc/config/i386/i386.c
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@ -45842,7 +45842,17 @@ ix86_md_asm_adjust (vec<rtx> &outputs, vec<rtx> &/*inputs*/,
{
rtx destqi = gen_reg_rtx (QImode);
emit_insn (gen_rtx_SET (destqi, x));
x = gen_rtx_ZERO_EXTEND (dest_mode, destqi);
if (TARGET_ZERO_EXTEND_WITH_AND
&& optimize_function_for_speed_p (cfun))
{
x = force_reg (dest_mode, const0_rtx);
emit_insn (gen_movstrictqi
(gen_lowpart (QImode, x), destqi));
}
else
x = gen_rtx_ZERO_EXTEND (dest_mode, destqi);
}
emit_insn (gen_rtx_SET (dest, x));
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2015-07-10 Uros Bizjak <ubizjak@gmail.com>
PR target/66813
* gcc.target/i386/pr66813.c: New test.
2015-07-10 Jakub Jelinek <jakub@redhat.com>
PR middle-end/66820

5
gcc/testsuite/gcc.target/i386/pr66813.c Normal file
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@ -0,0 +1,5 @@
/* { dg-do compile { target { ia32 } } } */
/* { dg-options "-march=pentium" } */
void f_s(void) { short x; asm("" : "=@ccc"(x)); }
void f_i(void) { int x; asm("" : "=@ccc"(x)); }