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lp: make sure 0xff is unsigned before shifting it past signed int range

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src/gallium/auxiliary/gallivm/lp_bld_format_s3tc.c:2446:82: runtime error: left shift of 255 by 24 places cannot be represented in type 'int'

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26368>
This commit is contained in:
Eric Engestrom 2023-11-26 11:22:28 +00:00 • committed by Marge Bot
parent 023fa0aa5d
commit 1492d24f89
1 changed files with 3 additions and 3 deletions
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6
src/gallium/auxiliary/gallivm/lp_bld_format_s3tc.c
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@ -2443,7 +2443,7 @@ rgtc1_to_rgba_aos(struct gallivm_state *gallivm,
memset(&type8, 0, sizeof type8);
type8.width = 8;
type8.length = n*4;
rgba = lp_build_const_int_vec(gallivm, type, is_signed ? (0x7f << 24) : (0xff << 24));
rgba = lp_build_const_int_vec(gallivm, type, is_signed ? (0x7f << 24) : (0xffu << 24));
rgba = LLVMBuildOr(builder, rgba, red, "");
return LLVMBuildBitCast(builder, rgba, lp_build_vec_type(gallivm, type8), "");
}
@ -2471,7 +2471,7 @@ rgtc2_to_rgba_aos(struct gallivm_state *gallivm,
memset(&type8, 0, sizeof type8);
type8.width = 8;
type8.length = n*4;
rgba = lp_build_const_int_vec(gallivm, type, is_signed ? (0x7f << 24) : (0xff << 24));
rgba = lp_build_const_int_vec(gallivm, type, is_signed ? (0x7f << 24) : (0xffu << 24));
rgba = LLVMBuildOr(builder, rgba, red, "");
green = LLVMBuildShl(builder, green, lp_build_const_int_vec(gallivm, type, 8), "");
rgba = LLVMBuildOr(builder, rgba, green, "");
@ -2498,7 +2498,7 @@ latc1_to_rgba_aos(struct gallivm_state *gallivm,
memset(&type8, 0, sizeof type8);
type8.width = 8;
type8.length = n*4;
rgba = lp_build_const_int_vec(gallivm, type, is_signed ? (0x7f << 24) : (0xff << 24));
rgba = lp_build_const_int_vec(gallivm, type, is_signed ? (0x7f << 24) : (0xffu << 24));
rgba = LLVMBuildOr(builder, rgba, red, "");
temp = LLVMBuildShl(builder, red, lp_build_const_int_vec(gallivm, type, 8), "");
rgba = LLVMBuildOr(builder, rgba, temp, "");