[llvm] [LoongArch] Disable mulodi4 and muloti4 libcalls (PR #73199)
via llvm-commits
llvm-commits at lists.llvm.org
Wed Nov 22 23:17:13 PST 2023
https://github.com/heiher updated https://github.com/llvm/llvm-project/pull/73199
>From 6a01b7b4a76b64d2f1a0f7213f57a07811f23416 Mon Sep 17 00:00:00 2001
From: WANG Rui <wangrui at loongson.cn>
Date: Thu, 23 Nov 2023 10:40:53 +0800
Subject: [PATCH 1/2] [LoongArch] Disable mulodi4 and muloti4 libcalls
This library function only exists in compiler-rt not libgcc. So
this would fail to link unless we were linking with compiler-rt.
Fixes https://github.com/ClangBuiltLinux/linux/issues/1958
---
llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
index f3f72e74ef085a2..ac78789c2c331df 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -152,8 +152,13 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
// Set libcalls.
setLibcallName(RTLIB::MUL_I128, nullptr);
+ // The MULO libcall is not part of libgcc, only compiler-rt.
+ setLibcallName(RTLIB::MULO_I64, nullptr);
}
+ // The MULO libcall is not part of libgcc, only compiler-rt.
+ setLibcallName(RTLIB::MULO_I128, nullptr);
+
setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Custom);
static const ISD::CondCode FPCCToExpand[] = {
>From 672dd60e30de9174c81ed7ad9e2c6fdba9c9b85c Mon Sep 17 00:00:00 2001
From: WANG Rui <wangrui at loongson.cn>
Date: Thu, 23 Nov 2023 14:23:23 +0800
Subject: [PATCH 2/2] [LoongArch] Update smul with overflow tests
---
.../CodeGen/LoongArch/smul-with-overflow.ll | 463 +++++++++++++++---
1 file changed, 392 insertions(+), 71 deletions(-)
diff --git a/llvm/test/CodeGen/LoongArch/smul-with-overflow.ll b/llvm/test/CodeGen/LoongArch/smul-with-overflow.ll
index a53e77e5aa4b342..6cba4108d63c6f8 100644
--- a/llvm/test/CodeGen/LoongArch/smul-with-overflow.ll
+++ b/llvm/test/CodeGen/LoongArch/smul-with-overflow.ll
@@ -5,23 +5,53 @@
define zeroext i1 @smuloi64(i64 %v1, i64 %v2, ptr %res) {
; LA32-LABEL: smuloi64:
; LA32: # %bb.0:
-; LA32-NEXT: addi.w $sp, $sp, -16
-; LA32-NEXT: .cfi_def_cfa_offset 16
-; LA32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
-; LA32-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
-; LA32-NEXT: .cfi_offset 1, -4
-; LA32-NEXT: .cfi_offset 22, -8
-; LA32-NEXT: move $fp, $a4
-; LA32-NEXT: st.w $zero, $sp, 4
-; LA32-NEXT: addi.w $a4, $sp, 4
-; LA32-NEXT: bl %plt(__mulodi4)
-; LA32-NEXT: st.w $a1, $fp, 4
-; LA32-NEXT: st.w $a0, $fp, 0
-; LA32-NEXT: ld.w $a0, $sp, 4
+; LA32-NEXT: srai.w $a5, $a1, 31
+; LA32-NEXT: mul.w $a6, $a2, $a5
+; LA32-NEXT: mulh.wu $a7, $a2, $a5
+; LA32-NEXT: add.w $a7, $a7, $a6
+; LA32-NEXT: mul.w $a5, $a3, $a5
+; LA32-NEXT: add.w $a5, $a7, $a5
+; LA32-NEXT: srai.w $a7, $a3, 31
+; LA32-NEXT: mul.w $t0, $a7, $a1
+; LA32-NEXT: mulh.wu $t1, $a7, $a0
+; LA32-NEXT: add.w $t0, $t1, $t0
+; LA32-NEXT: mul.w $a7, $a7, $a0
+; LA32-NEXT: add.w $t0, $t0, $a7
+; LA32-NEXT: add.w $a5, $t0, $a5
+; LA32-NEXT: mulh.wu $t0, $a0, $a2
+; LA32-NEXT: mul.w $t1, $a1, $a2
+; LA32-NEXT: add.w $t0, $t1, $t0
+; LA32-NEXT: sltu $t1, $t0, $t1
+; LA32-NEXT: mulh.wu $t2, $a1, $a2
+; LA32-NEXT: add.w $t1, $t2, $t1
+; LA32-NEXT: mul.w $t2, $a0, $a3
+; LA32-NEXT: add.w $t0, $t2, $t0
+; LA32-NEXT: sltu $t2, $t0, $t2
+; LA32-NEXT: mulh.wu $t3, $a0, $a3
+; LA32-NEXT: add.w $t2, $t3, $t2
+; LA32-NEXT: add.w $a6, $a7, $a6
+; LA32-NEXT: sltu $a7, $a6, $a7
+; LA32-NEXT: add.w $a5, $a5, $a7
+; LA32-NEXT: mul.w $a0, $a0, $a2
+; LA32-NEXT: mul.w $a2, $a1, $a3
+; LA32-NEXT: mulh.wu $a1, $a1, $a3
+; LA32-NEXT: add.w $a3, $t1, $t2
+; LA32-NEXT: sltu $a7, $a3, $t1
+; LA32-NEXT: add.w $a1, $a1, $a7
+; LA32-NEXT: st.w $a0, $a4, 0
+; LA32-NEXT: add.w $a0, $a2, $a3
+; LA32-NEXT: sltu $a2, $a0, $a2
+; LA32-NEXT: add.w $a1, $a1, $a2
+; LA32-NEXT: st.w $t0, $a4, 4
+; LA32-NEXT: add.w $a1, $a1, $a5
+; LA32-NEXT: add.w $a2, $a0, $a6
+; LA32-NEXT: sltu $a0, $a2, $a0
+; LA32-NEXT: add.w $a0, $a1, $a0
+; LA32-NEXT: srai.w $a1, $t0, 31
+; LA32-NEXT: xor $a0, $a0, $a1
+; LA32-NEXT: xor $a1, $a2, $a1
+; LA32-NEXT: or $a0, $a1, $a0
; LA32-NEXT: sltu $a0, $zero, $a0
-; LA32-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
-; LA32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
-; LA32-NEXT: addi.w $sp, $sp, 16
; LA32-NEXT: ret
;
; LA64-LABEL: smuloi64:
@@ -43,69 +73,360 @@ define zeroext i1 @smuloi64(i64 %v1, i64 %v2, ptr %res) {
define zeroext i1 @smuloi128(i128 %v1, i128 %v2, ptr %res) {
; LA32-LABEL: smuloi128:
; LA32: # %bb.0:
-; LA32-NEXT: addi.w $sp, $sp, -64
-; LA32-NEXT: .cfi_def_cfa_offset 64
-; LA32-NEXT: st.w $ra, $sp, 60 # 4-byte Folded Spill
-; LA32-NEXT: st.w $fp, $sp, 56 # 4-byte Folded Spill
+; LA32-NEXT: addi.w $sp, $sp, -96
+; LA32-NEXT: .cfi_def_cfa_offset 96
+; LA32-NEXT: st.w $ra, $sp, 92 # 4-byte Folded Spill
+; LA32-NEXT: st.w $fp, $sp, 88 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s0, $sp, 84 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s1, $sp, 80 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s2, $sp, 76 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s3, $sp, 72 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s4, $sp, 68 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s5, $sp, 64 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s6, $sp, 60 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s7, $sp, 56 # 4-byte Folded Spill
+; LA32-NEXT: st.w $s8, $sp, 52 # 4-byte Folded Spill
; LA32-NEXT: .cfi_offset 1, -4
; LA32-NEXT: .cfi_offset 22, -8
-; LA32-NEXT: move $fp, $a2
-; LA32-NEXT: st.w $zero, $sp, 52
-; LA32-NEXT: ld.w $a2, $a1, 12
-; LA32-NEXT: st.w $a2, $sp, 12
-; LA32-NEXT: ld.w $a2, $a1, 8
-; LA32-NEXT: st.w $a2, $sp, 8
-; LA32-NEXT: ld.w $a2, $a1, 4
-; LA32-NEXT: st.w $a2, $sp, 4
-; LA32-NEXT: ld.w $a1, $a1, 0
-; LA32-NEXT: st.w $a1, $sp, 0
-; LA32-NEXT: ld.w $a1, $a0, 12
-; LA32-NEXT: st.w $a1, $sp, 28
-; LA32-NEXT: ld.w $a1, $a0, 8
-; LA32-NEXT: st.w $a1, $sp, 24
-; LA32-NEXT: ld.w $a1, $a0, 4
-; LA32-NEXT: st.w $a1, $sp, 20
-; LA32-NEXT: ld.w $a0, $a0, 0
-; LA32-NEXT: st.w $a0, $sp, 16
-; LA32-NEXT: addi.w $a0, $sp, 32
-; LA32-NEXT: addi.w $a1, $sp, 16
-; LA32-NEXT: addi.w $a2, $sp, 0
-; LA32-NEXT: addi.w $a3, $sp, 52
-; LA32-NEXT: bl %plt(__muloti4)
-; LA32-NEXT: ld.w $a0, $sp, 44
-; LA32-NEXT: st.w $a0, $fp, 12
-; LA32-NEXT: ld.w $a0, $sp, 40
-; LA32-NEXT: st.w $a0, $fp, 8
-; LA32-NEXT: ld.w $a0, $sp, 36
-; LA32-NEXT: st.w $a0, $fp, 4
-; LA32-NEXT: ld.w $a0, $sp, 32
-; LA32-NEXT: st.w $a0, $fp, 0
-; LA32-NEXT: ld.w $a0, $sp, 52
+; LA32-NEXT: .cfi_offset 23, -12
+; LA32-NEXT: .cfi_offset 24, -16
+; LA32-NEXT: .cfi_offset 25, -20
+; LA32-NEXT: .cfi_offset 26, -24
+; LA32-NEXT: .cfi_offset 27, -28
+; LA32-NEXT: .cfi_offset 28, -32
+; LA32-NEXT: .cfi_offset 29, -36
+; LA32-NEXT: .cfi_offset 30, -40
+; LA32-NEXT: .cfi_offset 31, -44
+; LA32-NEXT: st.w $a2, $sp, 12 # 4-byte Folded Spill
+; LA32-NEXT: ld.w $a6, $a1, 0
+; LA32-NEXT: ld.w $a7, $a0, 0
+; LA32-NEXT: mulh.wu $a3, $a7, $a6
+; LA32-NEXT: ld.w $a5, $a0, 4
+; LA32-NEXT: mul.w $a4, $a5, $a6
+; LA32-NEXT: add.w $a3, $a4, $a3
+; LA32-NEXT: sltu $a4, $a3, $a4
+; LA32-NEXT: mulh.wu $t0, $a5, $a6
+; LA32-NEXT: add.w $a4, $t0, $a4
+; LA32-NEXT: ld.w $t0, $a1, 4
+; LA32-NEXT: mul.w $t1, $a7, $t0
+; LA32-NEXT: add.w $a3, $t1, $a3
+; LA32-NEXT: st.w $a3, $sp, 44 # 4-byte Folded Spill
+; LA32-NEXT: sltu $t1, $a3, $t1
+; LA32-NEXT: mulh.wu $t2, $a7, $t0
+; LA32-NEXT: add.w $t1, $t2, $t1
+; LA32-NEXT: ld.w $t4, $a0, 12
+; LA32-NEXT: ld.w $t2, $a0, 8
+; LA32-NEXT: ld.w $t3, $a1, 8
+; LA32-NEXT: mulh.wu $a0, $t2, $t3
+; LA32-NEXT: mul.w $t5, $t4, $t3
+; LA32-NEXT: add.w $a0, $t5, $a0
+; LA32-NEXT: sltu $t5, $a0, $t5
+; LA32-NEXT: mulh.wu $t6, $t4, $t3
+; LA32-NEXT: add.w $t5, $t6, $t5
+; LA32-NEXT: ld.w $t7, $a1, 12
+; LA32-NEXT: mul.w $a1, $t2, $t7
+; LA32-NEXT: add.w $a0, $a1, $a0
+; LA32-NEXT: st.w $a0, $sp, 48 # 4-byte Folded Spill
+; LA32-NEXT: sltu $a1, $a0, $a1
+; LA32-NEXT: mulh.wu $t6, $t2, $t7
+; LA32-NEXT: add.w $t6, $t6, $a1
+; LA32-NEXT: srai.w $s7, $t4, 31
+; LA32-NEXT: mul.w $a1, $s7, $t7
+; LA32-NEXT: mulh.wu $t8, $s7, $t3
+; LA32-NEXT: add.w $t8, $t8, $a1
+; LA32-NEXT: mulh.wu $fp, $a6, $s7
+; LA32-NEXT: mul.w $s6, $t0, $s7
+; LA32-NEXT: add.w $s8, $s6, $fp
+; LA32-NEXT: mul.w $a1, $a6, $s7
+; LA32-NEXT: add.w $ra, $a1, $s8
+; LA32-NEXT: sltu $s0, $ra, $a1
+; LA32-NEXT: add.w $a0, $fp, $s0
+; LA32-NEXT: add.w $a3, $a4, $t1
+; LA32-NEXT: st.w $a3, $sp, 20 # 4-byte Folded Spill
+; LA32-NEXT: sltu $a4, $a3, $a4
+; LA32-NEXT: mulh.wu $t1, $a5, $t0
+; LA32-NEXT: add.w $a3, $t1, $a4
+; LA32-NEXT: st.w $a3, $sp, 28 # 4-byte Folded Spill
+; LA32-NEXT: srai.w $s4, $t7, 31
+; LA32-NEXT: mul.w $fp, $a7, $s4
+; LA32-NEXT: mulh.wu $a4, $a7, $s4
+; LA32-NEXT: add.w $s1, $a4, $fp
+; LA32-NEXT: sltu $s0, $s1, $fp
+; LA32-NEXT: add.w $s5, $a4, $s0
+; LA32-NEXT: mul.w $a4, $s7, $t3
+; LA32-NEXT: add.w $t8, $t8, $a4
+; LA32-NEXT: add.w $s0, $ra, $t8
+; LA32-NEXT: add.w $a3, $a1, $a4
+; LA32-NEXT: st.w $a3, $sp, 32 # 4-byte Folded Spill
+; LA32-NEXT: sltu $a4, $a3, $a1
+; LA32-NEXT: add.w $a3, $s0, $a4
+; LA32-NEXT: st.w $a3, $sp, 24 # 4-byte Folded Spill
+; LA32-NEXT: add.w $s3, $t5, $t6
+; LA32-NEXT: sltu $a4, $s3, $t5
+; LA32-NEXT: mulh.wu $t5, $t4, $t7
+; LA32-NEXT: add.w $a3, $t5, $a4
+; LA32-NEXT: st.w $a3, $sp, 16 # 4-byte Folded Spill
+; LA32-NEXT: mul.w $a4, $a7, $a6
+; LA32-NEXT: st.w $a4, $a2, 0
+; LA32-NEXT: sltu $a4, $s8, $s6
+; LA32-NEXT: mulh.wu $t5, $t0, $s7
+; LA32-NEXT: add.w $a4, $t5, $a4
+; LA32-NEXT: add.w $t1, $a4, $a0
+; LA32-NEXT: sltu $a4, $t1, $a4
+; LA32-NEXT: add.w $s2, $t5, $a4
+; LA32-NEXT: mulh.wu $a4, $a7, $t3
+; LA32-NEXT: mul.w $t5, $a5, $t3
+; LA32-NEXT: add.w $a4, $t5, $a4
+; LA32-NEXT: sltu $t5, $a4, $t5
+; LA32-NEXT: mulh.wu $t6, $a5, $t3
+; LA32-NEXT: add.w $a3, $t6, $t5
+; LA32-NEXT: mul.w $t6, $a7, $t7
+; LA32-NEXT: add.w $t5, $t6, $a4
+; LA32-NEXT: sltu $a4, $t5, $t6
+; LA32-NEXT: mulh.wu $t6, $a7, $t7
+; LA32-NEXT: add.w $a4, $t6, $a4
+; LA32-NEXT: mulh.wu $t6, $t2, $a6
+; LA32-NEXT: mul.w $s7, $t4, $a6
+; LA32-NEXT: add.w $t6, $s7, $t6
+; LA32-NEXT: sltu $s7, $t6, $s7
+; LA32-NEXT: mulh.wu $s8, $t4, $a6
+; LA32-NEXT: add.w $a0, $s8, $s7
+; LA32-NEXT: mul.w $s7, $t2, $t0
+; LA32-NEXT: add.w $t6, $s7, $t6
+; LA32-NEXT: sltu $s7, $t6, $s7
+; LA32-NEXT: mulh.wu $s8, $t2, $t0
+; LA32-NEXT: add.w $a2, $s8, $s7
+; LA32-NEXT: mul.w $s8, $a5, $s4
+; LA32-NEXT: add.w $s7, $s1, $s8
+; LA32-NEXT: add.w $s1, $s7, $ra
+; LA32-NEXT: add.w $a1, $fp, $a1
+; LA32-NEXT: st.w $a1, $sp, 40 # 4-byte Folded Spill
+; LA32-NEXT: sltu $ra, $a1, $fp
+; LA32-NEXT: add.w $a1, $s1, $ra
+; LA32-NEXT: st.w $a1, $sp, 36 # 4-byte Folded Spill
+; LA32-NEXT: xor $s0, $a1, $s7
+; LA32-NEXT: sltui $s0, $s0, 1
+; LA32-NEXT: sltu $a1, $a1, $s7
+; LA32-NEXT: masknez $s1, $a1, $s0
+; LA32-NEXT: maskeqz $s0, $ra, $s0
+; LA32-NEXT: add.w $t1, $s6, $t1
+; LA32-NEXT: sltu $s6, $t1, $s6
+; LA32-NEXT: add.w $s2, $s2, $s6
+; LA32-NEXT: add.w $a2, $a0, $a2
+; LA32-NEXT: sltu $a0, $a2, $a0
+; LA32-NEXT: mulh.wu $s6, $t4, $t0
+; LA32-NEXT: add.w $t8, $s6, $a0
+; LA32-NEXT: add.w $a4, $a3, $a4
+; LA32-NEXT: sltu $a3, $a4, $a3
+; LA32-NEXT: mulh.wu $s6, $a5, $t7
+; LA32-NEXT: add.w $a3, $s6, $a3
+; LA32-NEXT: mul.w $s6, $t4, $t7
+; LA32-NEXT: mul.w $t7, $a5, $t7
+; LA32-NEXT: mul.w $ra, $t4, $t0
+; LA32-NEXT: mul.w $t0, $a5, $t0
+; LA32-NEXT: mul.w $t4, $t4, $s4
+; LA32-NEXT: mul.w $a7, $a7, $t3
+; LA32-NEXT: mul.w $a6, $t2, $a6
+; LA32-NEXT: mul.w $t3, $t2, $t3
+; LA32-NEXT: mul.w $a0, $t2, $s4
+; LA32-NEXT: mulh.wu $t2, $t2, $s4
+; LA32-NEXT: mulh.wu $a5, $s4, $a5
+; LA32-NEXT: sltu $s4, $s7, $s8
+; LA32-NEXT: add.w $s4, $a5, $s4
+; LA32-NEXT: add.w $s4, $s5, $s4
+; LA32-NEXT: sltu $s5, $s4, $s5
+; LA32-NEXT: add.w $s5, $a5, $s5
+; LA32-NEXT: ld.w $a1, $sp, 20 # 4-byte Folded Reload
+; LA32-NEXT: add.w $a1, $t0, $a1
+; LA32-NEXT: sltu $a5, $a1, $t0
+; LA32-NEXT: ld.w $t0, $sp, 28 # 4-byte Folded Reload
+; LA32-NEXT: add.w $t0, $t0, $a5
+; LA32-NEXT: or $s0, $s0, $s1
+; LA32-NEXT: add.w $a4, $t7, $a4
+; LA32-NEXT: sltu $a5, $a4, $t7
+; LA32-NEXT: add.w $t7, $a3, $a5
+; LA32-NEXT: add.w $s1, $ra, $a2
+; LA32-NEXT: sltu $a2, $s1, $ra
+; LA32-NEXT: add.w $t8, $t8, $a2
+; LA32-NEXT: add.w $a5, $s6, $s3
+; LA32-NEXT: sltu $a2, $a5, $s6
+; LA32-NEXT: ld.w $a3, $sp, 16 # 4-byte Folded Reload
+; LA32-NEXT: add.w $a2, $a3, $a2
+; LA32-NEXT: ld.w $s6, $sp, 12 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $a3, $sp, 44 # 4-byte Folded Reload
+; LA32-NEXT: st.w $a3, $s6, 4
+; LA32-NEXT: ld.w $a3, $sp, 24 # 4-byte Folded Reload
+; LA32-NEXT: add.w $a3, $s2, $a3
+; LA32-NEXT: ld.w $s2, $sp, 32 # 4-byte Folded Reload
+; LA32-NEXT: add.w $s2, $t1, $s2
+; LA32-NEXT: sltu $t1, $s2, $t1
+; LA32-NEXT: add.w $a3, $a3, $t1
+; LA32-NEXT: add.w $t1, $s8, $s4
+; LA32-NEXT: sltu $s3, $t1, $s8
+; LA32-NEXT: add.w $s3, $s5, $s3
+; LA32-NEXT: add.w $t2, $t2, $a0
+; LA32-NEXT: add.w $t2, $t2, $t4
+; LA32-NEXT: add.w $t2, $t2, $s7
+; LA32-NEXT: add.w $t4, $a0, $fp
+; LA32-NEXT: sltu $a0, $t4, $a0
+; LA32-NEXT: add.w $a0, $t2, $a0
+; LA32-NEXT: add.w $a0, $s3, $a0
+; LA32-NEXT: add.w $t2, $t1, $t4
+; LA32-NEXT: sltu $t1, $t2, $t1
+; LA32-NEXT: add.w $a0, $a0, $t1
+; LA32-NEXT: add.w $a0, $a0, $a3
+; LA32-NEXT: add.w $t1, $t2, $s2
+; LA32-NEXT: sltu $a3, $t1, $t2
+; LA32-NEXT: add.w $a0, $a0, $a3
+; LA32-NEXT: add.w $a3, $t6, $t0
+; LA32-NEXT: add.w $a1, $a6, $a1
+; LA32-NEXT: sltu $a6, $a1, $a6
+; LA32-NEXT: add.w $t0, $a3, $a6
+; LA32-NEXT: add.w $a1, $a7, $a1
+; LA32-NEXT: sltu $a7, $a1, $a7
+; LA32-NEXT: add.w $a3, $t5, $t0
+; LA32-NEXT: add.w $a3, $a3, $a7
+; LA32-NEXT: sltu $t2, $a3, $t5
+; LA32-NEXT: xor $t4, $a3, $t5
+; LA32-NEXT: sltui $t4, $t4, 1
+; LA32-NEXT: masknez $t2, $t2, $t4
+; LA32-NEXT: maskeqz $a7, $a7, $t4
+; LA32-NEXT: st.w $a1, $s6, 8
+; LA32-NEXT: or $a1, $a7, $t2
+; LA32-NEXT: sltu $a7, $t0, $t6
+; LA32-NEXT: xor $t0, $t0, $t6
+; LA32-NEXT: sltui $t0, $t0, 1
+; LA32-NEXT: masknez $a7, $a7, $t0
+; LA32-NEXT: maskeqz $a6, $a6, $t0
+; LA32-NEXT: or $a6, $a6, $a7
+; LA32-NEXT: add.w $a6, $s1, $a6
+; LA32-NEXT: sltu $a7, $a6, $s1
+; LA32-NEXT: add.w $a7, $t8, $a7
+; LA32-NEXT: add.w $a1, $a4, $a1
+; LA32-NEXT: sltu $a4, $a1, $a4
+; LA32-NEXT: add.w $a4, $t7, $a4
+; LA32-NEXT: add.w $t0, $t1, $s0
+; LA32-NEXT: sltu $t1, $t0, $t1
+; LA32-NEXT: add.w $a0, $a0, $t1
+; LA32-NEXT: st.w $a3, $s6, 12
+; LA32-NEXT: add.w $a1, $a6, $a1
+; LA32-NEXT: sltu $a6, $a1, $a6
+; LA32-NEXT: add.w $a4, $a7, $a4
+; LA32-NEXT: add.w $a4, $a4, $a6
+; LA32-NEXT: sltu $t1, $a4, $a7
+; LA32-NEXT: xor $a7, $a4, $a7
+; LA32-NEXT: sltui $a7, $a7, 1
+; LA32-NEXT: masknez $t1, $t1, $a7
+; LA32-NEXT: maskeqz $a6, $a6, $a7
+; LA32-NEXT: or $a6, $a6, $t1
+; LA32-NEXT: add.w $a6, $a5, $a6
+; LA32-NEXT: sltu $a5, $a6, $a5
+; LA32-NEXT: add.w $a2, $a2, $a5
+; LA32-NEXT: ld.w $t1, $sp, 48 # 4-byte Folded Reload
+; LA32-NEXT: add.w $a4, $t1, $a4
+; LA32-NEXT: add.w $a1, $t3, $a1
+; LA32-NEXT: sltu $a5, $a1, $t3
+; LA32-NEXT: add.w $a4, $a4, $a5
+; LA32-NEXT: sltu $a7, $a4, $t1
+; LA32-NEXT: xor $t1, $a4, $t1
+; LA32-NEXT: sltui $t1, $t1, 1
+; LA32-NEXT: masknez $a7, $a7, $t1
+; LA32-NEXT: maskeqz $a5, $a5, $t1
+; LA32-NEXT: or $a5, $a5, $a7
+; LA32-NEXT: add.w $a5, $a6, $a5
+; LA32-NEXT: sltu $a6, $a5, $a6
+; LA32-NEXT: add.w $a2, $a2, $a6
+; LA32-NEXT: add.w $a0, $a2, $a0
+; LA32-NEXT: add.w $a2, $a5, $t0
+; LA32-NEXT: sltu $a5, $a2, $a5
+; LA32-NEXT: add.w $a0, $a0, $a5
+; LA32-NEXT: ld.w $a5, $sp, 40 # 4-byte Folded Reload
+; LA32-NEXT: add.w $a5, $a1, $a5
+; LA32-NEXT: sltu $a1, $a5, $a1
+; LA32-NEXT: ld.w $a6, $sp, 36 # 4-byte Folded Reload
+; LA32-NEXT: add.w $a6, $a4, $a6
+; LA32-NEXT: add.w $a6, $a6, $a1
+; LA32-NEXT: sltu $a7, $a6, $a4
+; LA32-NEXT: xor $a4, $a6, $a4
+; LA32-NEXT: sltui $a4, $a4, 1
+; LA32-NEXT: masknez $a7, $a7, $a4
+; LA32-NEXT: maskeqz $a1, $a1, $a4
+; LA32-NEXT: or $a1, $a1, $a7
+; LA32-NEXT: add.w $a1, $a2, $a1
+; LA32-NEXT: sltu $a2, $a1, $a2
+; LA32-NEXT: add.w $a0, $a0, $a2
+; LA32-NEXT: srai.w $a2, $a3, 31
+; LA32-NEXT: xor $a3, $a6, $a2
+; LA32-NEXT: xor $a0, $a0, $a2
+; LA32-NEXT: or $a0, $a3, $a0
+; LA32-NEXT: xor $a3, $a5, $a2
+; LA32-NEXT: xor $a1, $a1, $a2
+; LA32-NEXT: or $a1, $a3, $a1
+; LA32-NEXT: or $a0, $a1, $a0
; LA32-NEXT: sltu $a0, $zero, $a0
-; LA32-NEXT: ld.w $fp, $sp, 56 # 4-byte Folded Reload
-; LA32-NEXT: ld.w $ra, $sp, 60 # 4-byte Folded Reload
-; LA32-NEXT: addi.w $sp, $sp, 64
+; LA32-NEXT: ld.w $s8, $sp, 52 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s7, $sp, 56 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s6, $sp, 60 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s5, $sp, 64 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s4, $sp, 68 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s3, $sp, 72 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s2, $sp, 76 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s1, $sp, 80 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $s0, $sp, 84 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $fp, $sp, 88 # 4-byte Folded Reload
+; LA32-NEXT: ld.w $ra, $sp, 92 # 4-byte Folded Reload
+; LA32-NEXT: addi.w $sp, $sp, 96
; LA32-NEXT: ret
;
; LA64-LABEL: smuloi128:
; LA64: # %bb.0:
-; LA64-NEXT: addi.d $sp, $sp, -32
-; LA64-NEXT: .cfi_def_cfa_offset 32
-; LA64-NEXT: st.d $ra, $sp, 24 # 8-byte Folded Spill
-; LA64-NEXT: st.d $fp, $sp, 16 # 8-byte Folded Spill
-; LA64-NEXT: .cfi_offset 1, -8
-; LA64-NEXT: .cfi_offset 22, -16
-; LA64-NEXT: move $fp, $a4
-; LA64-NEXT: st.d $zero, $sp, 8
-; LA64-NEXT: addi.d $a4, $sp, 8
-; LA64-NEXT: bl %plt(__muloti4)
-; LA64-NEXT: st.d $a1, $fp, 8
-; LA64-NEXT: st.d $a0, $fp, 0
-; LA64-NEXT: ld.d $a0, $sp, 8
+; LA64-NEXT: srai.d $a5, $a1, 63
+; LA64-NEXT: mul.d $a6, $a2, $a5
+; LA64-NEXT: mulh.du $a7, $a2, $a5
+; LA64-NEXT: add.d $a7, $a7, $a6
+; LA64-NEXT: mul.d $a5, $a3, $a5
+; LA64-NEXT: add.d $a5, $a7, $a5
+; LA64-NEXT: srai.d $a7, $a3, 63
+; LA64-NEXT: mul.d $t0, $a7, $a1
+; LA64-NEXT: mulh.du $t1, $a7, $a0
+; LA64-NEXT: add.d $t0, $t1, $t0
+; LA64-NEXT: mul.d $a7, $a7, $a0
+; LA64-NEXT: add.d $t0, $t0, $a7
+; LA64-NEXT: add.d $a5, $t0, $a5
+; LA64-NEXT: mulh.du $t0, $a0, $a2
+; LA64-NEXT: mul.d $t1, $a1, $a2
+; LA64-NEXT: add.d $t0, $t1, $t0
+; LA64-NEXT: sltu $t1, $t0, $t1
+; LA64-NEXT: mulh.du $t2, $a1, $a2
+; LA64-NEXT: add.d $t1, $t2, $t1
+; LA64-NEXT: mul.d $t2, $a0, $a3
+; LA64-NEXT: add.d $t0, $t2, $t0
+; LA64-NEXT: sltu $t2, $t0, $t2
+; LA64-NEXT: mulh.du $t3, $a0, $a3
+; LA64-NEXT: add.d $t2, $t3, $t2
+; LA64-NEXT: add.d $a6, $a7, $a6
+; LA64-NEXT: sltu $a7, $a6, $a7
+; LA64-NEXT: add.d $a5, $a5, $a7
+; LA64-NEXT: mul.d $a0, $a0, $a2
+; LA64-NEXT: mul.d $a2, $a1, $a3
+; LA64-NEXT: mulh.du $a1, $a1, $a3
+; LA64-NEXT: add.d $a3, $t1, $t2
+; LA64-NEXT: sltu $a7, $a3, $t1
+; LA64-NEXT: add.d $a1, $a1, $a7
+; LA64-NEXT: st.d $a0, $a4, 0
+; LA64-NEXT: add.d $a0, $a2, $a3
+; LA64-NEXT: sltu $a2, $a0, $a2
+; LA64-NEXT: add.d $a1, $a1, $a2
+; LA64-NEXT: st.d $t0, $a4, 8
+; LA64-NEXT: add.d $a1, $a1, $a5
+; LA64-NEXT: add.d $a2, $a0, $a6
+; LA64-NEXT: sltu $a0, $a2, $a0
+; LA64-NEXT: add.d $a0, $a1, $a0
+; LA64-NEXT: srai.d $a1, $t0, 63
+; LA64-NEXT: xor $a0, $a0, $a1
+; LA64-NEXT: xor $a1, $a2, $a1
+; LA64-NEXT: or $a0, $a1, $a0
; LA64-NEXT: sltu $a0, $zero, $a0
-; LA64-NEXT: ld.d $fp, $sp, 16 # 8-byte Folded Reload
-; LA64-NEXT: ld.d $ra, $sp, 24 # 8-byte Folded Reload
-; LA64-NEXT: addi.d $sp, $sp, 32
; LA64-NEXT: ret
%t = call {i128, i1} @llvm.smul.with.overflow.i128(i128 %v1, i128 %v2)
%val = extractvalue {i128, i1} %t, 0
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