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ac: do not crash when the buffer data format is invalid

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This might happen when a pipeline doesn't define the vertex input
state, so the buffer data format is 0 (aka INVALID).

This fixes crashes when compiling some shaders on GFX10.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2019-07-29 12:03:46 +02:00
parent a9f58af454
commit 4aa450193b
1 changed files with 1 additions and 0 deletions
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src/amd/common/ac_llvm_build.c
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@@ -1508,6 +1508,7 @@ ac_get_tbuffer_format(struct ac_llvm_context *ctx,
unsigned format;
switch (dfmt) {
default: unreachable("bad dfmt");
case V_008F0C_BUF_DATA_FORMAT_INVALID: format = V_008F0C_IMG_FORMAT_INVALID; break;
case V_008F0C_BUF_DATA_FORMAT_8: format = V_008F0C_IMG_FORMAT_8_UINT; break;
case V_008F0C_BUF_DATA_FORMAT_8_8: format = V_008F0C_IMG_FORMAT_8_8_UINT; break;
case V_008F0C_BUF_DATA_FORMAT_8_8_8_8: format = V_008F0C_IMG_FORMAT_8_8_8_8_UINT; break;