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| author | Tamar Christina <tamar.christina@arm.com> | 2018-05-10 16:22:32 +0100 |
|---|---|---|
| committer | Tamar Christina <tamar.christina@arm.com> | 2018-05-10 16:43:28 +0100 |
| commit | 58ed5c38f52511e73c9748b86c319320177fb0ca (patch) | |
| tree | d6a80c5b465e846aba3589a55b27503e4cdded35 /gas/config/tc-arm.c | |
| parent | 190852c8ac75cb62a737c58edfadfb0e1fcef78a (diff) | |
| download | gdb-58ed5c38f52511e73c9748b86c319320177fb0ca.zip gdb-58ed5c38f52511e73c9748b86c319320177fb0ca.tar.gz gdb-58ed5c38f52511e73c9748b86c319320177fb0ca.tar.bz2 | |
Allow integer immediate for VFP vmov instructions.
This patch fixes the case where you want to use an integer value the
floating point immediate to a VFP vmov instruction such as
vmovmi.f32 s27, #11.
If the immediate is not a float we convert it and copy it's representation
into the imm field and then carry on validating as if we originally entered
a floating point immediate.
The is considered a QoL improvement for hand assembly writers and allows more
code portability between assembler.
gas/
* gas/config/tc-arm.c (do_neon_mov): Allow integer literal for float
immediate.
* testsuite/gas/arm/vfp-mov-enc.s: New.
* testsuite/gas/arm/vfp-mov-enc.d: New.
Diffstat (limited to 'gas/config/tc-arm.c')
| -rw-r--r-- | gas/config/tc-arm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index 760afab..dbaf162 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -16691,6 +16691,14 @@ do_neon_mov (void) case NS_FI: /* case 10 (fconsts). */ ldconst = "fconsts"; encode_fconstd: + if (!inst.operands[1].immisfloat) + { + /* Immediate has to fit in 8 bits so float is enough. */ + float imm = (float)inst.operands[1].imm; + memcpy (&inst.operands[1].imm, &imm, sizeof (float)); + inst.operands[1].immisfloat = 1; + } + if (is_quarter_float (inst.operands[1].imm)) { inst.operands[1].imm = neon_qfloat_bits (inst.operands[1].imm); |