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authorIlia Mirkin <[email protected]>2015-06-26 15:01:22 -0400
committerIlia Mirkin <[email protected]>2015-06-26 18:42:29 -0400
commitad62ec8316a926682958e7ab52639992867c3755 (patch)
tree9ec42876581683f8e8acdcff2a0068bfc60b4c75 /src/gallium/drivers
parent052b3d4e2f159038137504f01e9ff2380a67af8b (diff)
nv50/ir: propagate modifier to right arg when const-folding mad
An immediate has to be the second arg of an ADD operation. However we were mistakenly propagating the modifier of the non-folded value to the folded immediate argument. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91117 Signed-off-by: Ilia Mirkin <[email protected]> Cc: "10.5 10.6" <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
index ae739eeda83..ad9bf6f4aa9 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
@@ -608,9 +608,12 @@ ConstantFolding::expr(Instruction *i,
case OP_FMA: {
i->op = OP_ADD;
+ /* Move the immediate to the second arg, otherwise the ADD operation
+ * won't be emittable
+ */
i->setSrc(1, i->getSrc(0));
- i->src(1).mod = i->src(2).mod;
i->setSrc(0, i->getSrc(2));
+ i->src(0).mod = i->src(2).mod;
i->setSrc(2, NULL);
ImmediateValue src0;