ArmPkg: use unified asm syntax for CLANG
The CLANG assembler does not support the legacy, non-unified assembler syntax, i.e., it does not support the reordering of the condition suffixes with the increment/decrement before/after or byte/word suffixes, and it does not recognize the 'empty descending' (ED) suffix at all. So move to the unified syntax, and replace 'empty descending' with 'decrement after' or 'increment before' as appropriate. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19280 6f19259b-4bc3-4df7-8a09-765794883524
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abiesheuvel
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@@ -14,6 +14,7 @@
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#
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.text
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.syntax unified
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.p2align 2
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GCC_ASM_EXPORT(__switchu8)
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@@ -22,8 +23,8 @@ GCC_ASM_EXPORT(__switchu8)
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ASM_PFX(__switchu8):
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ldrb ip,[lr,#-1]
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cmp r0,ip
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ldrccb r0,[lr,r0]
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ldrcsb r0,[lr,ip]
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ldrbcc r0,[lr,r0]
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ldrbcs r0,[lr,ip]
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add ip,lr,r0,LSL #1
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bx ip
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