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| author | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-08-05 11:37:10 -0400 |
|---|---|---|
| committer | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-09-15 23:01:30 -0400 |
| commit | 246a48ba94b92e6c1e02964d46269e0903b7a723 (patch) | |
| tree | 5bbb97fa09f78af4c2c3f4db3b8c958b724fbbe6 /lisc/test | |
| parent | 1477dffe32ae769c15ee49e77c5f0856bd0f56ea (diff) | |
| download | roux-246a48ba94b92e6c1e02964d46269e0903b7a723.tar.gz | |
start work on comparisons
There are two things I overlooked so far. 1. Binary instructions like cmp that do not have a result in registers need the size suffix sometimes, for example when comparing a spill location with a constant. 2. The register allocator needs to be adapted to support the comparison instruction: it is not possible to compare two spill locations without using a register.
Diffstat (limited to 'lisc/test')
| -rw-r--r-- | lisc/test/cup.ssa | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lisc/test/cup.ssa b/lisc/test/cup.ssa new file mode 100644 index 0000000..64f2ab4 --- /dev/null +++ b/lisc/test/cup.ssa @@ -0,0 +1,10 @@ +# counts up + +@start +@loop + %n0 =w phi @start -1988, @loop %n1 + %n1 =w add 1, %n0 + %cmp =w csle %n1, 1000 + jez %cmp, @end, @loop +@end + ret |