Subzero, MIPS32: Intrinsic call Cttz for i32

tests_lit/assembler/mips32/encoding_intrinsics.ll

Index: tests_lit/assembler/mips32/encoding_intrinsics.ll
diff --git a/tests_lit/assembler/mips32/encoding_intrinsics.ll b/tests_lit/assembler/mips32/encoding_intrinsics.ll
index 8b6d3a17095c8d6ea02cbb2c2a6a3623534cc69c..9b243bb62bf644b1bc79b53c4e0766dc2984ed06 100644
--- a/tests_lit/assembler/mips32/encoding_intrinsics.ll
+++ b/tests_lit/assembler/mips32/encoding_intrinsics.ll
@@ -23,6 +23,7 @@
 ; RUN:   | FileCheck %s --check-prefix=DIS
 
 declare i32 @llvm.ctlz.i32(i32, i1)
+declare i32 @llvm.cttz.i32(i32, i1)
 declare void @llvm.trap()
 
 define internal i32 @encCtlz32(i32 %x) {
@@ -57,6 +58,62 @@ entry:
 ; IASM-NEXT: 	.byte 0xe0
 ; IASM-NEXT: 	.byte 0x3
 
+define internal i32 @encCttz32(i32 %x) {
+entry:
+  %r = call i32 @llvm.cttz.i32(i32 %x, i1 false)
+  ret i32 %r
+}
+
+; ASM-LABEL: encCttz32
+; ASM-NEXT: .LencCttz32$entry:
+; ASM-NEXT: 	addiu	$v0, $a0, -1
+; ASM-NEXT: 	nor	$a0, $a0, $zero
+; ASM-NEXT: 	and	$a0, $a0, $v0
+; ASM-NEXT: 	clz	$a0, $a0
+; ASM-NEXT: 	addiu	$v0, $zero, 32
+; ASM-NEXT: 	subu	$v0, $v0, $a0
+; ASM-NEXT: 	jr	$ra
+
+; DIS-LABEL: 00000010 <encCttz32>:
+; DIS-NEXT:   10:	2482ffff 	addiu	v0,a0,-1
+; DIS-NEXT:   14:	00802027 	nor	a0,a0,zero
+; DIS-NEXT:   18:	00822024 	and	a0,a0,v0
+; DIS-NEXT:   1c:	70842020 	clz	a0,a0
+; DIS-NEXT:   20:	24020020 	li	v0,32
+; DIS-NEXT:   24:	00441023 	subu	v0,v0,a0
+; DIS-NEXT:   28:	03e00008 	jr	ra
+
+; IASM-LABEL: encCttz32
+; IASM-NEXT: .LencCttz32$entry:
+; IASM-NEXT: 	.byte 0xff
+; IASM-NEXT: 	.byte 0xff
+; IASM-NEXT: 	.byte 0x82
+; IASM-NEXT: 	.byte 0x24
+; IASM-NEXT: 	.byte 0x27
+; IASM-NEXT: 	.byte 0x20
+; IASM-NEXT: 	.byte 0x80
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0x24
+; IASM-NEXT: 	.byte 0x20
+; IASM-NEXT: 	.byte 0x82
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0x20
+; IASM-NEXT: 	.byte 0x20
+; IASM-NEXT: 	.byte 0x84
+; IASM-NEXT: 	.byte 0x70
+; IASM-NEXT: 	.byte 0x20
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0x2
+; IASM-NEXT: 	.byte 0x24
+; IASM-NEXT: 	.byte 0x23
+; IASM-NEXT: 	.byte 0x10
+; IASM-NEXT: 	.byte 0x44
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0x8
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0xe0
+; IASM-NEXT: 	.byte 0x3
+
 define internal void @encTrap() {
   unreachable
 }
@@ -65,8 +122,8 @@ define internal void @encTrap() {
 ; ASM-NEXT: .LencTrap$__0:
 ; ASM-NEXT: 	teq	$zero, $zero, 0
 
-; DIS-LABEL: 00000010 <encTrap>:
-; DIS-NEXT:    10:	00000034 	teq	zero,zero
+; DIS-LABEL: 00000030 <encTrap>:
+; DIS-NEXT:    30:	00000034 	teq	zero,zero
 
 ; IASM-LABEL: encTrap:
 ; IASM-NEXT: .LencTrap$__0: