nouveau: Fix a couple of "foo may be used uninitialized' compiler warnings

These are all new false positives with gcc6.

In nouveau_compiler.c: gcc6 no longer assumes that passing a pointer
to a variable into a function initialises that variable.

In nv50_ir_from_tgsi.cpp op and mode are not set if there are 0
enabled dst channels, this never happens, but gcc cannot know this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
index c0816cbf0609b4d5379133303c5a091b2f9bbf5d..825a44f35fb6df503b2c05c6d5c495a56e1b75e6 100644 (file)
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -2750,8 +2750,8 @@ Converter::handleINTERP(Value *dst[4])
    Value *offset = NULL, *ptr = NULL, *w = NULL;
    Symbol *sym[4] = { NULL };
    bool linear;
-   operation op;
-   int c, mode;
+   operation op = OP_NOP;
+   int c, mode = 0;
 
    tgsi::Instruction::SrcRegister src = tgsi.getSrc(0);
 

diff --git a/src/gallium/drivers/nouveau/nouveau_compiler.c b/src/gallium/drivers/nouveau/nouveau_compiler.c
index e00ad3fc0b87505fcdb86f47c49493f7bd11a11f..d8009f5bfe4352d2cad11d480dc428e869ccd8f4 100644 (file)
--- a/src/gallium/drivers/nouveau/nouveau_compiler.c
+++ b/src/gallium/drivers/nouveau/nouveau_compiler.c
@@ -142,7 +142,7 @@ main(int argc, char *argv[])
    const char *filename = NULL;
    FILE *f;
    char text[65536] = {0};
-   unsigned size, *code;
+   unsigned size = 0, *code = NULL;
 
    for (i = 1; i < argc; i++) {
       if (!strcmp(argv[i], "-a"))