Mesa (master): nouveau: Silence some warnings at -Og
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Thu Feb 18 21:15:30 UTC 2021
Module: Mesa
Branch: master
Commit: 86b85798bdfec9e3fee66d8e723fbbf56ae0b69a
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=86b85798bdfec9e3fee66d8e723fbbf56ae0b69a
Author: Adam Jackson <ajax at redhat.com>
Date: Tue Jan 26 14:27:48 2021 -0500
nouveau: Silence some warnings at -Og
../src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp: In member function ‘bool {anonymous}::Converter::handleInstruction(const tgsi_full_instruction*)’:
../src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp:3419:22: warning: ‘src1’ may be used uninitialized in this function [-Wmaybe-uninitialized]
3419 | geni = mkOp3(op, dstTy, dst0[c], fetchSrc(0, c), src1, mkImm(0x1f));
../src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp:3272:15: warning: ‘val1’ may be used uninitialized in this function [-Wmaybe-uninitialized]
3272 | mkOp1(OP_EX2, TYPE_F32, dst0[1], val1);
Can't happen, just initialize them to NULL.
Reviewed-by: Eric Anholt <eric at anholt.net>
Reviewed-by: Karol Herbst <kherbst at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8724>
---
src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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 8eb710446ce..b2e0fb0436e 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -3121,7 +3121,7 @@ Converter::handleInstruction(const struct tgsi_full_instruction *insn)
Value *dst0[4], *rDst0[4];
Value *src0, *src1, *src2, *src3;
- Value *val0, *val1;
+ Value *val0 = NULL, *val1 = NULL;
int c;
tgsi = tgsi::Instruction(insn);
@@ -3415,6 +3415,8 @@ Converter::handleInstruction(const struct tgsi_full_instruction *insn)
case TGSI_OPCODE_READ_INVOC:
if (tgsi.getOpcode() == TGSI_OPCODE_READ_INVOC)
src1 = fetchSrc(1, 0);
+ else
+ src1 = val0;
FOR_EACH_DST_ENABLED_CHANNEL(0, c, tgsi) {
geni = mkOp3(op, dstTy, dst0[c], fetchSrc(0, c), src1, mkImm(0x1f));
geni->subOp = NV50_IR_SUBOP_SHFL_IDX;
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