Renato Golin 608cb5def6 [ARM] Support and tests for transform of LDR rt, = to MOV ... This change implements the transformation in processInstruction() for the LDR rt, =expression to MOV rt, expression when the expression can be evaluated and can fit into the immediate field of the MOV or a MVN. Across the ARM and Thumb instruction sets there are several cases to consider, each with a different range of representatble constants. In ARM we have: * Modified immediate (All ARM architectures) * MOVW (v6t2 and above) In Thumb we have: * Modified immediate (v6t2, v7m and v8m.mainline) * MOVW (v6t2, v7m, v8.mainline and v8m.baseline) * Narrow Thumb MOV that can be used in an IT block (non flag-setting) If the immediate fits any of the available alternatives then we make the transformation. Fixes 25722. Patch by Peter Smith. llvm-svn: 269354		2016-05-12 21:22:42 +00:00
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ARMAsmParser.cpp	[ARM] Support and tests for transform of LDR rt, = to MOV	2016-05-12 21:22:42 +00:00
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