authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2019-10-01 17:39:31-04:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2019-10-01 17:41:03-04:00
loga8d6954c23d816121471558990c5dd6bf5f82c89
tree3116f932c4abd7fed542647192afd73bbac5e1ad
parentc1a05f058112885adb9ac6f08737e670a3773d4b
signaturelock-open Commit is signed but in an unrecognized format.

fix tripping LLVM assertion in const unions

1 files changed, 2 insertions(+), 3 deletions(-)

src/codegen.cpp+2-3
...@@ -6764,13 +6764,12 @@ check: switch (const_val->special) {...@@ -6764,13 +6764,12 @@ check: switch (const_val->special) {
6764 assert(LLVMGetTypeKind(field_ty) == LLVMIntegerTypeKind);6764 assert(LLVMGetTypeKind(field_ty) == LLVMIntegerTypeKind);
6765 fields[type_struct_field->gen_index] = val;6765 fields[type_struct_field->gen_index] = val;
6766 } else {6766 } else {
6767 const LLVMValueRef MASK = LLVMConstInt(LLVMInt8Type(), 255, false);6767 const LLVMValueRef AMT = LLVMConstInt(LLVMTypeOf(val), 8, false);
6768 const LLVMValueRef AMT = LLVMConstInt(LLVMInt8Type(), 8, false);
67696768
6770 LLVMValueRef *values = allocate<LLVMValueRef>(size_in_bytes);6769 LLVMValueRef *values = allocate<LLVMValueRef>(size_in_bytes);
6771 for (size_t i = 0; i < size_in_bytes; i++) {6770 for (size_t i = 0; i < size_in_bytes; i++) {
6772 const size_t idx = is_big_endian ? size_in_bytes - 1 - i : i;6771 const size_t idx = is_big_endian ? size_in_bytes - 1 - i : i;
6773 values[idx] = LLVMConstTruncOrBitCast(LLVMConstAnd(val, MASK), LLVMInt8Type());6772 values[idx] = LLVMConstTruncOrBitCast(val, LLVMInt8Type());
6774 val = LLVMConstLShr(val, AMT);6773 val = LLVMConstLShr(val, AMT);
6775 }6774 }
67766775