From 99b253c5147a1fbe848d5f797666a1b546d300de Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Fri, 29 Jan 2010 16:02:41 +0000 Subject: [PATCH] PR 11136 * config/tc-arm.c (neon_check_type): Handle a neon_shape value of NS_NULL. * gas/arm/neon-omit.s: Add instruction that causes crash. * gas/arm/neon-omit.d: Add expected disassembly. --- gas/ChangeLog | 8 +++++++- gas/config/tc-arm.c | 16 ++++++++++++---- gas/testsuite/ChangeLog | 6 ++++++ gas/testsuite/gas/arm/neon-omit.d | 1 + gas/testsuite/gas/arm/neon-omit.s | 3 +++ 5 files changed, 29 insertions(+), 5 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index 685e69983a7..358f47074ac 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +2010-01-29 Nick Clifton + + PR 11136 + * config/tc-arm.c (neon_check_type): Handle a neon_shape value of + NS_NULL. + 2010-01-27 Dave Korn * NEWS: Mention new feature. @@ -42,7 +48,7 @@ Include obj-format.h earlier. 2010-01-21 Andreas Krebbel - + * config/tc-s390.c (s390_elf_final_processing): New function. * config/tc-s390.h (elf_tc_final_processing): New macro definition. (s390_elf_final_processing): Added prototype. diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index d5a0ec4b12b..7bf5416c993 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -12043,8 +12043,17 @@ neon_check_type (unsigned els, enum neon_shape ns, ...) { if ((thisarg & N_VFP) != 0) { - enum neon_shape_el regshape = neon_shape_tab[ns].el[i]; - unsigned regwidth = neon_shape_el_size[regshape], match; + enum neon_shape_el regshape; + unsigned regwidth, match; + + /* PR 11136: Catch the case where we are passed a shape of NS_NULL. */ + if (ns == NS_NULL) + { + first_error (_("invalid instruction shape")); + return badtype; + } + regshape = neon_shape_tab[ns].el[i]; + regwidth = neon_shape_el_size[regshape]; /* In VFP mode, operands must match register widths. If we have a key operand, use its width, else use the width of @@ -12193,9 +12202,8 @@ try_vfp_nsyn (int args, void (*pfn) (enum neon_shape)) pfn (rs); return SUCCESS; } - else - inst.error = NULL; + inst.error = NULL; return FAIL; } diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index 8c87e5e34fa..ffd0c49e692 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2010-01-29 Nick Clifton + + PR 11136 + * gas/arm/neon-omit.s: Add instruction that causes crash. + * gas/arm/neon-omit.d: Add expected disassembly. + 2010-01-28 Dave Korn * gas/pe/section-align-1.d: Don't test section flags. diff --git a/gas/testsuite/gas/arm/neon-omit.d b/gas/testsuite/gas/arm/neon-omit.d index 20017077bca..3a1eeab2ac8 100644 --- a/gas/testsuite/gas/arm/neon-omit.d +++ b/gas/testsuite/gas/arm/neon-omit.d @@ -93,3 +93,4 @@ Disassembly of section .text: 0[0-9a-f]+ <[^>]+> f3954556 vsli\.16 q2, q3, #5 0[0-9a-f]+ <[^>]+> f3bff6b7 vqshlu\.s64 d15, d23, #63.* 0[0-9a-f]+ <[^>]+> f2b25386 vext\.8 d5, d18, d6, #3 +0[0-9a-f]+ <[^>]+> f3020d54 vmul\.f32 q0, q1, q2 diff --git a/gas/testsuite/gas/arm/neon-omit.s b/gas/testsuite/gas/arm/neon-omit.s index 42a7e8903b1..35490a5fbbd 100644 --- a/gas/testsuite/gas/arm/neon-omit.s +++ b/gas/testsuite/gas/arm/neon-omit.s @@ -95,3 +95,6 @@ vsli.16 q2,q3,#5 vqshlu.s64 d15,d23,#63 vext.8 d5,d18,d6,#3 + +@ PR 11136 - this used to crash the assembler. + vmul.f32 q0,q1,q2 -- 2.30.2