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clang-cl error: instruction requires: 64-bit mode #20590

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ehsan opened this issue Jul 5, 2014 · 1 comment
Open

clang-cl error: instruction requires: 64-bit mode #20590

ehsan opened this issue Jul 5, 2014 · 1 comment
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bugzilla Issues migrated from bugzilla clang Clang issues not falling into any other category

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@ehsan
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ehsan commented Jul 5, 2014

Bugzilla Link 20216
Version trunk
OS All
CC @majnemer,@zmodem,@jrmuizel,@rnk,@rinon

Extended Description

$ cat test.c
void f() {
char file[] = "";
__asm lea eax, file
}

Ehsan Akhgari@WIN-LD01V6P651K /c/moz/src/obj-ff-clangcl/gfx/cairo/cairo/src
$ clang-cl -c test.c
(2,2) : error: instruction requires: 64-bit mode
lea eax, byte ptr file
^
1 error generated.
@ehsan
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ehsan commented Jul 6, 2014

The issue is that in Sema::LookupInlineAsmIdentifier, we look at the type of file and notice that it's an array type, so we set the size according to the size of the array (in this test case the size will be 1 which causes us to rewrite this and add a byte ptr.

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 9, 2021
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