[llvm] [Mips] mips1 DivByZeroTrap (PR #81311)

[YunQiang Su via llvm-commits]

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@@ -206,12 +234,30 @@ entry:
 }
 
 define signext i32 @sdiv_i32(i32 signext %a, i32 signext %b) {
-; GP32-LABEL: sdiv_i32:
-; GP32:       # %bb.0: # %entry
-; GP32-NEXT:    div $zero, $4, $5
-; GP32-NEXT:    teq $5, $zero, 7
-; GP32-NEXT:    jr $ra
-; GP32-NEXT:    mflo $2
+; GP32R0R1-LABEL: sdiv_i32:
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wzssyqa wrote:

Since MIPS I is not supported well yet for LLVM, and I guess the 32R0 was supposed to be equal with MIPS II in this context.

If we need MIPS I, we may use a new name for it, maybe 32_I?

https://github.com/llvm/llvm-project/pull/81311