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[doc]Added examples for generic opcodes 

Added examples to G_BR, G_BRCOND, G_BRJT, G_BRINDIRECT

Differential Revision: https://reviews.llvm.org/D104974
This commit is contained in:
pooja2299 2021-07-29 16:51:28 +05:30
parent 2256b359d7
commit 460d220872
1 changed files with 16 additions and 2 deletions
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18
llvm/docs/GlobalISel/GenericOpcode.rst
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@ -290,7 +290,9 @@ These each perform their respective integer arithmetic on a scalar.
.. code-block:: none
%2:_(s32) = G_ADD %0:_(s32), %1:_(s32)
%dst:_(s32) = G_ADD %src0:_(s32), %src1:_(s32)
The above exmaple adds %src1 to %src0 and stores the result in %dst.
G_SDIVREM, G_UDIVREM
^^^^^^^^^^^^^^^^^^^^
@ -755,28 +757,40 @@ Implement the φ node in the SSA graph representing the function.
.. code-block:: none
%1(s8) = G_PHI %7(s8), %bb.0, %3(s8), %bb.1
%dst(s8) = G_PHI %src1(s8), %bb.<id1>, %src2(s8), %bb.<id2>
G_BR
^^^^
Unconditional branch
.. code-block:: none
G_BR %bb.<id>
G_BRCOND
^^^^^^^^
Conditional branch
.. code-block:: none
G_BRCOND %condition, %basicblock.<id>
G_BRINDIRECT
^^^^^^^^^^^^
Indirect branch
.. code-block:: none
G_BRINDIRECT %src(p0)
G_BRJT
^^^^^^
Indirect branch to jump table entry
.. code-block:: none
G_BRJT %ptr(p0), %jti, %idx(s64)
G_JUMP_TABLE
^^^^^^^^^^^^