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| author | Eric Botcazou <ebotcazou@adacore.com> | 2011-09-18 22:00:52 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2011-09-18 22:00:52 +0000 |
| commit | 3903f804302c66b3e06238799577a36cfe403a42 (patch) | |
| tree | 6bbc4c576014143611b0cbd0aedb5e2f20c1f765 /gcc | |
| parent | e0cdd8d4c204592661f161e9be8009355488c46f (diff) | |
| download | gcc-3903f804302c66b3e06238799577a36cfe403a42.zip gcc-3903f804302c66b3e06238799577a36cfe403a42.tar.gz gcc-3903f804302c66b3e06238799577a36cfe403a42.tar.bz2 | |
re PR target/50091 (-fstack-check generates wrong assembly)
PR target/50091
* config/rs6000/rs6000.md (probe_stack): Use explicit operand.
* config/rs6000/rs6000.c (output_probe_stack_range): Likewise.
Co-Authored-By: Iain Sandoe <developer@sandoe-acoustics.co.uk>
From-SVN: r178944
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 3 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 6 |
3 files changed, 14 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 461840f..a7c7279 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2011-09-18 Eric Botcazou <ebotcazou@adacore.com> + Iain Sandoe <developer@sandoe-acoustics.co.uk> + + PR target/50091 + * config/rs6000/rs6000.md (probe_stack): Use explicit operand. + * config/rs6000/rs6000.c (output_probe_stack_range): Likewise. + 2011-09-18 H.J. Lu <hongjiu.lu@intel.com> * config/i386/bmiintrin.h: Remove tmp. diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 1ab57e5..63c0f0c 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -19303,7 +19303,8 @@ output_probe_stack_range (rtx reg1, rtx reg2) output_asm_insn ("{cal %0,%1(%0)|addi %0,%0,%1}", xops); /* Probe at TEST_ADDR and branch. */ - output_asm_insn ("{st|stw} 0,0(%0)", xops); + xops[1] = gen_rtx_REG (Pmode, 0); + output_asm_insn ("{st|stw} %1,0(%0)", xops); fprintf (asm_out_file, "\tb "); assemble_name_raw (asm_out_file, loop_lab); fputc ('\n', asm_out_file); diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 818456f..3db67a53 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -13049,7 +13049,11 @@ [(set (match_operand 0 "memory_operand" "=m") (unspec [(const_int 0)] UNSPEC_PROBE_STACK))] "" - "{st%U0%X0|stw%U0%X0} 0,%0" + "* +{ + operands[1] = gen_rtx_REG (Pmode, 0); + return \"{st%U0%X0|stw%U0%X0} %1,%0\"; +}" [(set_attr "type" "store") (set_attr "length" "4")]) |