[llvm] 038bd14 - [RISCV] Add another test case showing failure to use remw when the RHS has been zero extended from less than i32. NFC

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2021-02-20T14:03:30-08:00
New Revision: 038bd14712d149cb51a8e95eb7bbdcfa7753a555

URL: https://github.com/llvm/llvm-project/commit/038bd14712d149cb51a8e95eb7bbdcfa7753a555
DIFF: https://github.com/llvm/llvm-project/commit/038bd14712d149cb51a8e95eb7bbdcfa7753a555.diff

LOG: [RISCV] Add another test case showing failure to use remw when the RHS has been zero extended from less than i32. NFC

Added: 
    

Modified: 
    llvm/test/CodeGen/RISCV/rv64m-exhaustive-w-insts.ll

Removed: 
    


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diff  --git a/llvm/test/CodeGen/RISCV/rv64m-exhaustive-w-insts.ll b/llvm/test/CodeGen/RISCV/rv64m-exhaustive-w-insts.ll
index a60714f5e8f7..c5b5472661e6 100644
--- a/llvm/test/CodeGen/RISCV/rv64m-exhaustive-w-insts.ll
+++ b/llvm/test/CodeGen/RISCV/rv64m-exhaustive-w-insts.ll
@@ -1123,6 +1123,18 @@ define signext i32 @sext_i32_remw_zext_sext_i16(i16 zeroext %0, i16 signext %1)
   ret i32 %5
 }
 
+define signext i32 @sext_i32_remw_sext_zext_i16(i16 signext %a, i16 zeroext %b) nounwind {
+; RV64IM-LABEL: sext_i32_remw_sext_zext_i16:
+; RV64IM:       # %bb.0:
+; RV64IM-NEXT:    rem a0, a0, a1
+; RV64IM-NEXT:    sext.w a0, a0
+; RV64IM-NEXT:    ret
+  %1 = sext i16 %a to i32
+  %2 = zext i16 %b to i32
+  %3 = srem i32 %1, %2
+  ret i32 %3
+}
+
 define i32 @aext_remuw_aext_aext(i32 %a, i32 %b) nounwind {
 ; RV64IM-LABEL: aext_remuw_aext_aext:
 ; RV64IM:       # %bb.0: