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Diffstat (limited to 'llvm/test/CodeGen/RISCV/memcmp-optsize.ll')
-rw-r--r--llvm/test/CodeGen/RISCV/memcmp-optsize.ll270
1 files changed, 116 insertions, 154 deletions
diff --git a/llvm/test/CodeGen/RISCV/memcmp-optsize.ll b/llvm/test/CodeGen/RISCV/memcmp-optsize.ll
index d529ae6ecd0a..f9086ba9d635 100644
--- a/llvm/test/CodeGen/RISCV/memcmp-optsize.ll
+++ b/llvm/test/CodeGen/RISCV/memcmp-optsize.ll
@@ -2449,82 +2449,72 @@ define i32 @memcmp_size_3(ptr %s1, ptr %s2) nounwind optsize {
;
; CHECK-UNALIGNED-RV32-ZBB-LABEL: memcmp_size_3:
; CHECK-UNALIGNED-RV32-ZBB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: lh a2, 0(a0)
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: lh a3, 0(a1)
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: srli a2, a2, 16
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: srli a3, a3, 16
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: bne a2, a3, .LBB24_2
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: # %bb.1: # %loadbb1
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: lbu a0, 2(a0)
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: lbu a1, 2(a1)
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: sub a0, a0, a1
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: ret
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: .LBB24_2: # %res_block
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: lbu a2, 2(a0)
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: lhu a0, 0(a0)
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: lbu a3, 2(a1)
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: lhu a1, 0(a1)
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: slli a2, a2, 16
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: or a0, a0, a2
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: slli a3, a3, 16
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: or a1, a1, a3
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV32-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV64-ZBB-LABEL: memcmp_size_3:
; CHECK-UNALIGNED-RV64-ZBB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lh a2, 0(a0)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lh a3, 0(a1)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a2, a2, 48
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a3, a3, 48
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: bne a2, a3, .LBB24_2
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: # %bb.1: # %loadbb1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a0, 2(a0)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a1, 2(a1)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: .LBB24_2: # %res_block
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a2, 2(a0)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lhu a0, 0(a0)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a3, 2(a1)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lhu a1, 0(a1)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: slli a2, a2, 16
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: or a0, a0, a2
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: slli a3, a3, 16
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: or a1, a1, a3
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a0, a0, 32
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a1, a1, 32
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-ZBKB-LABEL: memcmp_size_3:
; CHECK-UNALIGNED-RV32-ZBKB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lh a2, 0(a0)
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lh a3, 0(a1)
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: srli a2, a2, 16
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: srli a3, a3, 16
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: bne a2, a3, .LBB24_2
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: # %bb.1: # %loadbb1
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lhu a2, 0(a0)
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lbu a0, 2(a0)
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lhu a3, 0(a1)
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lbu a1, 2(a1)
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sub a0, a0, a1
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: ret
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: .LBB24_2: # %res_block
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: pack a0, a2, a0
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: pack a1, a3, a1
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV64-ZBKB-LABEL: memcmp_size_3:
; CHECK-UNALIGNED-RV64-ZBKB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lh a2, 0(a0)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lh a3, 0(a1)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a2, a2, 48
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a3, a3, 48
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: bne a2, a3, .LBB24_2
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: # %bb.1: # %loadbb1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lbu a0, 2(a0)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lbu a1, 2(a1)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: .LBB24_2: # %res_block
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lbu a2, 2(a0)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lhu a0, 0(a0)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lbu a3, 2(a1)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lhu a1, 0(a1)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: slli a2, a2, 16
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: or a0, a0, a2
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: slli a3, a3, 16
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: or a1, a1, a3
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a0, a0, 32
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a1, a1, 32
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-V-LABEL: memcmp_size_3:
@@ -2658,9 +2648,9 @@ define i32 @memcmp_size_4(ptr %s1, ptr %s2) nounwind optsize {
; CHECK-UNALIGNED-RV32-ZBB-NEXT: lw a1, 0(a1)
; CHECK-UNALIGNED-RV32-ZBB-NEXT: rev8 a0, a0
; CHECK-UNALIGNED-RV32-ZBB-NEXT: rev8 a1, a1
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a2, a1, a0
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a0, a0, a1
-; CHECK-UNALIGNED-RV32-ZBB-NEXT: sub a0, a2, a0
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV32-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV32-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV64-ZBB-LABEL: memcmp_size_4:
@@ -2671,9 +2661,9 @@ define i32 @memcmp_size_4(ptr %s1, ptr %s2) nounwind optsize {
; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a1, a1
; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a0, a0, 32
; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a1, a1, 32
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a1, a0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a2, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-ZBKB-LABEL: memcmp_size_4:
@@ -2682,9 +2672,9 @@ define i32 @memcmp_size_4(ptr %s1, ptr %s2) nounwind optsize {
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: lw a1, 0(a1)
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: rev8 a0, a0
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: rev8 a1, a1
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a2, a1, a0
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a0, a0, a1
-; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sub a0, a2, a0
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV32-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV32-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV64-ZBKB-LABEL: memcmp_size_4:
@@ -2695,9 +2685,9 @@ define i32 @memcmp_size_4(ptr %s1, ptr %s2) nounwind optsize {
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a1, a1
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a0, a0, 32
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a1, a1, 32
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a1, a0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a2, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-V-LABEL: memcmp_size_4:
@@ -2845,22 +2835,19 @@ define i32 @memcmp_size_5(ptr %s1, ptr %s2) nounwind optsize {
;
; CHECK-UNALIGNED-RV64-ZBB-LABEL: memcmp_size_5:
; CHECK-UNALIGNED-RV64-ZBB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lw a2, 0(a0)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lw a3, 0(a1)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a2, a2, 32
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a3, a3, 32
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: bne a2, a3, .LBB26_2
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: # %bb.1: # %loadbb1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a0, 4(a0)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a1, 4(a1)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: .LBB26_2: # %res_block
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a2, 4(a0)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lwu a0, 0(a0)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lbu a3, 4(a1)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lwu a1, 0(a1)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: slli a2, a2, 32
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: or a0, a0, a2
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: slli a3, a3, 32
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: or a1, a1, a3
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-ZBKB-LABEL: memcmp_size_5:
@@ -2883,22 +2870,17 @@ define i32 @memcmp_size_5(ptr %s1, ptr %s2) nounwind optsize {
;
; CHECK-UNALIGNED-RV64-ZBKB-LABEL: memcmp_size_5:
; CHECK-UNALIGNED-RV64-ZBKB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lw a2, 0(a0)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lw a3, 0(a1)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a2, a2, 32
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a3, a3, 32
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: bne a2, a3, .LBB26_2
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: # %bb.1: # %loadbb1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lwu a2, 0(a0)
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lbu a0, 4(a0)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lwu a3, 0(a1)
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lbu a1, 4(a1)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: .LBB26_2: # %res_block
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: pack a0, a2, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: pack a1, a3, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-V-LABEL: memcmp_size_5:
@@ -3052,28 +3034,19 @@ define i32 @memcmp_size_6(ptr %s1, ptr %s2) nounwind optsize {
;
; CHECK-UNALIGNED-RV64-ZBB-LABEL: memcmp_size_6:
; CHECK-UNALIGNED-RV64-ZBB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lw a2, 0(a0)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lw a3, 0(a1)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a2, a2, 32
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a3, a3, 32
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: bne a2, a3, .LBB27_3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: # %bb.1: # %loadbb1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lh a0, 4(a0)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: lh a1, 4(a1)
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a2, a0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a3, a1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a2, a2, 48
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: srli a3, a3, 48
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: bne a2, a3, .LBB27_3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: # %bb.2:
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: li a0, 0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: .LBB27_3: # %res_block
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lhu a2, 4(a0)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lwu a0, 0(a0)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lhu a3, 4(a1)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: lwu a1, 0(a1)
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: slli a2, a2, 32
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: or a0, a0, a2
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: slli a3, a3, 32
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: or a1, a1, a3
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-ZBKB-LABEL: memcmp_size_6:
@@ -3102,28 +3075,17 @@ define i32 @memcmp_size_6(ptr %s1, ptr %s2) nounwind optsize {
;
; CHECK-UNALIGNED-RV64-ZBKB-LABEL: memcmp_size_6:
; CHECK-UNALIGNED-RV64-ZBKB: # %bb.0: # %entry
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lw a2, 0(a0)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lw a3, 0(a1)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a2, a2
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a3, a3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a2, a2, 32
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a3, a3, 32
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: bne a2, a3, .LBB27_3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: # %bb.1: # %loadbb1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lh a0, 4(a0)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lh a1, 4(a1)
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a2, a0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a3, a1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a2, a2, 48
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: srli a3, a3, 48
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: bne a2, a3, .LBB27_3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: # %bb.2:
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: li a0, 0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: .LBB27_3: # %res_block
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a2, a3
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: neg a0, a0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ori a0, a0, 1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lwu a2, 0(a0)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lhu a0, 4(a0)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lwu a3, 0(a1)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: lhu a1, 4(a1)
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: pack a0, a2, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: pack a1, a3, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a0, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a1, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-V-LABEL: memcmp_size_6:
@@ -3500,9 +3462,9 @@ define i32 @memcmp_size_8(ptr %s1, ptr %s2) nounwind optsize {
; CHECK-UNALIGNED-RV64-ZBB-NEXT: ld a1, 0(a1)
; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a0, a0
; CHECK-UNALIGNED-RV64-ZBB-NEXT: rev8 a1, a1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a1, a0
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a2, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-ZBKB-LABEL: memcmp_size_8:
@@ -3533,9 +3495,9 @@ define i32 @memcmp_size_8(ptr %s1, ptr %s2) nounwind optsize {
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ld a1, 0(a1)
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a0, a0
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: rev8 a1, a1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a1, a0
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a0, a1
-; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a2, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a2, a0, a1
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sltu a0, a1, a0
+; CHECK-UNALIGNED-RV64-ZBKB-NEXT: sub a0, a0, a2
; CHECK-UNALIGNED-RV64-ZBKB-NEXT: ret
;
; CHECK-UNALIGNED-RV32-V-LABEL: memcmp_size_8:
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-31 12:44:51 +0000