[llvm] [RISCV][POC] Recursive search for mul expansion (PR #96327)

[Craig Topper via llvm-commits]

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@@ -11,16 +11,16 @@ define i32 @add_mul_combine_accept_a1(i32 %x) {
 ; RV32IMB-LABEL: add_mul_combine_accept_a1:
 ; RV32IMB:       # %bb.0:
 ; RV32IMB-NEXT:    sh1add a1, a0, a0
-; RV32IMB-NEXT:    slli a0, a0, 5
-; RV32IMB-NEXT:    sub a0, a0, a1
+; RV32IMB-NEXT:    sh1add a1, a1, a0
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topperc wrote:

This is a code size regression.

https://github.com/llvm/llvm-project/pull/96327