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Choose type for integer literals to match the target mask size (if possible).

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On a target with a 16-bit mask (for example), we would choose the type
of an integer literal "1024" to be an int16.  Previously, we used an int32,
which is a worse fit and leads to less efficient code than an int16
on a 16-bit mask target.  (However, we'd still give an integer literal
1000000 the type int32, even in a 16-bit target.)

Updated the tests to still pass with 8 and 16-bit targets, given this
change.
This commit is contained in:
Matt Pharr
2013-07-23 17:01:03 -07:00
parent 9ba49eabb2
commit f7f281a256
61 changed files with 166 additions and 120 deletions
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4
tests/ldexp-float.ispc
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@@ -3,7 +3,7 @@ export uniform int width() { return programCount; }
export void f_f(uniform float RET[], uniform float aFOO[]) {
float a = 1 << (programIndex % 28);
float a = 1ul << (programIndex % 28);
if (programIndex & 1)
a = -a;
RET[programIndex] = ldexp(a, 2);
@@ -11,7 +11,7 @@ export void f_f(uniform float RET[], uniform float aFOO[]) {
export void result(uniform float RET[]) {
int pi = programIndex % 28;
RET[programIndex] = (1 << (pi + 2));
RET[programIndex] = (1ul << (pi + 2));
if (programIndex & 1)
RET[programIndex] = -RET[programIndex];
}