Subzero, MIPS32: Intrinsic call Bswap for i16, i32 and i64

tests_lit/assembler/mips32/encoding_intrinsics.ll

 ; Test encoding of MIPS32 instructions used in intrinsic calls
 
 ; REQUIRES: allow_dump
 
 ; Compile using standalone assembler.
 ; RUN: %p2i --filetype=asm -i %s --target=mips32 --args -O2 \
 ; RUN:   --allow-externally-defined-symbols --skip-unimplemented \
 ; RUN:   | FileCheck %s --check-prefix=ASM
 
 ; Show bytes in assembled standalone code.
 ; RUN: %p2i --filetype=asm -i %s --target=mips32 --assemble --disassemble \
 ; RUN:   --args -O2 --allow-externally-defined-symbols --skip-unimplemented \
 ; RUN:   | FileCheck %s --check-prefix=DIS
 
 ; Compile using integrated assembler.
 ; RUN: %p2i --filetype=iasm -i %s --target=mips32 --args -O2 \
 ; RUN:   --allow-externally-defined-symbols --skip-unimplemented \
 ; RUN:   | FileCheck %s --check-prefix=IASM
 
 ; Show bytes in assembled integrated code.
 ; RUN: %p2i --filetype=iasm -i %s --target=mips32 --assemble --disassemble \
 ; RUN:   --args -O2 --allow-externally-defined-symbols --skip-unimplemented \
 ; RUN:   | FileCheck %s --check-prefix=DIS
 
+declare i16 @llvm.bswap.i16(i16)
+declare i32 @llvm.bswap.i32(i32)
+declare i64 @llvm.bswap.i64(i64)
 declare i32 @llvm.ctlz.i32(i32, i1)
 declare i64 @llvm.ctlz.i64(i64, i1)
 declare i32 @llvm.cttz.i32(i32, i1)
 declare i64 @llvm.cttz.i64(i64, i1)
 declare void @llvm.trap()
 
+define internal i32 @encBswap16(i32 %x) {
+entry:
+  %x_trunc = trunc i32 %x to i16
+  %r = call i16 @llvm.bswap.i16(i16 %x_trunc)
+  %r_zext = zext i16 %r to i32
+  ret i32 %r_zext
+}
+
+; ASM-LABEL: encBswap16
+; ASM-NEXT: .LencBswap16$entry:
+; ASM-NEXT:     sll     $v0, $a0, 8
+; ASM-NEXT:     lui     $v1, 255
+; ASM-NEXT:     and     $v0, $v0, $v1
+; ASM-NEXT:     sll     $a0, $a0, 24
+; ASM-NEXT:     or      $v0, $a0, $v0
+; ASM-NEXT:     srl     $v0, $v0, 16
+; ASM-NEXT:     andi    $v0, $v0, 65535
+; ASM-NEXT:     jr      $ra
+
+; DIS-LABEL: {{.*}} <encBswap16>:
+; DIS-NEXT:  {{.*}} 00041200    sll     v0,a0,0x8
+; DIS-NEXT:  {{.*}} 3c0300ff    lui     v1,0xff
+; DIS-NEXT:  {{.*}} 00431024    and     v0,v0,v1
+; DIS-NEXT:  {{.*}} 00042600    sll     a0,a0,0x18
+; DIS-NEXT:  {{.*}} 00821025    or      v0,a0,v0
+; DIS-NEXT:  {{.*}} 00021402    srl     v0,v0,0x10
+; DIS-NEXT:  {{.*}} 3042ffff    andi    v0,v0,0xffff
+; DIS-NEXT:  {{.*}} 03e00008    jr      ra
+
+; IASM-LABEL: encBswap16
+; IASM-NEXT: .LencBswap16$entry:
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x12
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x3c
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x43
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x26
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x82
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x14
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x42
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0x8
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xe0
+; IASM-NEXT:    .byte 0x3
+
+define internal i32 @encBswap32(i32 %x) {
+entry:
+  %r = call i32 @llvm.bswap.i32(i32 %x)
+  ret i32 %r
+}
+
+; ASM-LABEL: encBswap32
+; ASM-NEXT: .LencBswap32$entry:
+; ASM-NEXT:     srl     $v0, $a0, 24
+; ASM-NEXT:     srl     $v1, $a0, 8
+; ASM-NEXT:     andi    $v1, $v1, 65280
+; ASM-NEXT:     or      $v0, $v1, $v0
+; ASM-NEXT:     sll     $v1, $a0, 8
+; ASM-NEXT:     lui     $a1, 255
+; ASM-NEXT:     and     $v1, $v1, $a1
+; ASM-NEXT:     sll     $a0, $a0, 24
+; ASM-NEXT:     or      $v1, $a0, $v1
+; ASM-NEXT:     or      $v1, $v1, $v0
+; ASM-NEXT:     move    $v0, $v1
+; ASM-NEXT:     jr      $ra
+
+; DIS-LABEL: {{.*}} <encBswap32>:
+; DIS-NEXT:  {{.*}} 00041602    srl     v0,a0,0x18
+; DIS-NEXT:  {{.*}} 00041a02    srl     v1,a0,0x8
+; DIS-NEXT:  {{.*}} 3063ff00    andi    v1,v1,0xff00
+; DIS-NEXT:  {{.*}} 00621025    or      v0,v1,v0
+; DIS-NEXT:  {{.*}} 00041a00    sll     v1,a0,0x8
+; DIS-NEXT:  {{.*}} 3c0500ff    lui     a1,0xff
+; DIS-NEXT:  {{.*}} 00651824    and     v1,v1,a1
+; DIS-NEXT:  {{.*}} 00042600    sll     a0,a0,0x18
+; DIS-NEXT:  {{.*}} 00831825    or      v1,a0,v1
+; DIS-NEXT:  {{.*}} 00621825    or      v1,v1,v0
+; DIS-NEXT:  {{.*}} 00601021    move    v0,v1
+; DIS-NEXT:  {{.*}} 03e00008    jr      ra
+
+; IASM-LABEL: encBswap32
+; IASM-NEXT: .LencBswap32$entry:
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x16
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x1a
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x63
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x62
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x1a
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x5
+; IASM-NEXT:    .byte 0x3c
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x65
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x26
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x83
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x62
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x60
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x8
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xe0
+; IASM-NEXT:    .byte 0x3
+
+define internal i64 @encBswap64(i64 %x) {
+entry:
+  %r = call i64 @llvm.bswap.i64(i64 %x)
+  ret i64 %r
+}
+
+; ASM-LABEL: encBswap64
+; ASM-NEXT: .LencBswap64$entry:
+; ASM-NEXT:     sll     $v0, $a1, 8
+; ASM-NEXT:     srl     $v1, $a1, 24
+; ASM-NEXT:     srl     $a2, $a1, 8
+; ASM-NEXT:     andi    $a2, $a2, 65280
+; ASM-NEXT:     lui     $a3, 255
+; ASM-NEXT:     or      $a2, $a2, $v1
+; ASM-NEXT:     and     $v0, $v0, $a3
+; ASM-NEXT:     sll     $a1, $a1, 24
+; ASM-NEXT:     or      $a1, $a1, $v0
+; ASM-NEXT:     srl     $v0, $a0, 24
+; ASM-NEXT:     srl     $v1, $a0, 8
+; ASM-NEXT:     andi    $v1, $v1, 65280
+; ASM-NEXT:     or      $a1, $a1, $a2
+; ASM-NEXT:     or      $v1, $v1, $v0
+; ASM-NEXT:     sll     $v0, $a0, 8
+; ASM-NEXT:     and     $v0, $v0, $a3
+; ASM-NEXT:     sll     $a0, $a0, 24
+; ASM-NEXT:     or      $a0, $a0, $v0
+; ASM-NEXT:     or      $a0, $a0, $v1
+; ASM-NEXT:     move    $v0, $a1
+; ASM-NEXT:     move    $v1, $a0
+; ASM-NEXT:     jr      $ra
+
+; DIS-LABEL: {{.*}} <encBswap64>:
+; DIS-NEXT:  {{.*}} 00051200    sll     v0,a1,0x8
+; DIS-NEXT:  {{.*}} 00051e02    srl     v1,a1,0x18
+; DIS-NEXT:  {{.*}} 00053202    srl     a2,a1,0x8
+; DIS-NEXT:  {{.*}} 30c6ff00    andi    a2,a2,0xff00
+; DIS-NEXT:  {{.*}} 3c0700ff    lui     a3,0xff
+; DIS-NEXT:  {{.*}} 00c33025    or      a2,a2,v1
+; DIS-NEXT:  {{.*}} 00471024    and     v0,v0,a3
+; DIS-NEXT:  {{.*}} 00052e00    sll     a1,a1,0x18
+; DIS-NEXT:  {{.*}} 00a22825    or      a1,a1,v0
+; DIS-NEXT:  {{.*}} 00041602    srl     v0,a0,0x18
+; DIS-NEXT:  {{.*}} 00041a02    srl     v1,a0,0x8
+; DIS-NEXT:  {{.*}} 3063ff00    andi    v1,v1,0xff00
+; DIS-NEXT:  {{.*}} 00a62825    or      a1,a1,a2
+; DIS-NEXT:  {{.*}} 00621825    or      v1,v1,v0
+; DIS-NEXT:  {{.*}} 00041200    sll     v0,a0,0x8
+; DIS-NEXT:  {{.*}} 00471024    and     v0,v0,a3
+; DIS-NEXT:  {{.*}} 00042600    sll     a0,a0,0x18
+; DIS-NEXT:  {{.*}} 00822025    or      a0,a0,v0
+; DIS-NEXT:  {{.*}} 00832025    or      a0,a0,v1
+; DIS-NEXT:  {{.*}} 00a01021    move    v0,a1
+; DIS-NEXT:  {{.*}} 00801821    move    v1,a0
+; DIS-NEXT:  {{.*}} 03e00008    jr      ra
+
+
+; IASM-LABEL: encBswap64
+; IASM-NEXT: .LencBswap64$entry:
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x12
+; IASM-NEXT:    .byte 0x5
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x1e
+; IASM-NEXT:    .byte 0x5
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x32
+; IASM-NEXT:    .byte 0x5
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xc6
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x7
+; IASM-NEXT:    .byte 0x3c
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0xc3
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x47
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2e
+; IASM-NEXT:    .byte 0x5
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x28
+; IASM-NEXT:    .byte 0xa2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x16
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x1a
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x63
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x28
+; IASM-NEXT:    .byte 0xa6
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x62
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x12
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x47
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x26
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0x82
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0x83
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0xa0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x80
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x8
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xe0
+; IASM-NEXT:    .byte 0x3
+
+define internal i64 @encBswap64Undef() {
+entry:
+  %r = call i64 @llvm.bswap.i64(i64 undef)
+  ret i64 %r
+}
+
+; ASM-LABEL: encBswap64Undef
+; ASM-NEXT: .LencBswap64Undef$entry:
+; ASM-NEXT:     # $zero = def.pseudo
+; ASM-NEXT:     addiu   $v0, $zero, 0
+; ASM-NEXT:     # $zero = def.pseudo
+; ASM-NEXT:     addiu   $v1, $zero, 0
+; ASM-NEXT:     sll     $a0, $v1, 8
+; ASM-NEXT:     srl     $a1, $v1, 24
+; ASM-NEXT:     srl     $a2, $v1, 8
+; ASM-NEXT:     andi    $a2, $a2, 65280
+; ASM-NEXT:     lui     $a3, 255
+; ASM-NEXT:     or      $a2, $a2, $a1
+; ASM-NEXT:     and     $a0, $a0, $a3
+; ASM-NEXT:     sll     $v1, $v1, 24
+; ASM-NEXT:     or      $v1, $v1, $a0
+; ASM-NEXT:     srl     $a0, $v0, 24
+; ASM-NEXT:     srl     $a1, $v0, 8
+; ASM-NEXT:     andi    $a1, $a1, 65280
+; ASM-NEXT:     or      $v1, $v1, $a2
+; ASM-NEXT:     or      $a1, $a1, $a0
+; ASM-NEXT:     sll     $a0, $v0, 8
+; ASM-NEXT:     and     $a0, $a0, $a3
+; ASM-NEXT:     sll     $v0, $v0, 24
+; ASM-NEXT:     or      $v0, $v0, $a0
+; ASM-NEXT:     or      $v0, $v0, $a1
+; ASM-NEXT:     move    $a0, $v0
+; ASM-NEXT:     move    $v0, $v1
+; ASM-NEXT:     move    $v1, $a0
+; ASM-NEXT:     jr      $ra
+
+; DIS-LABEL: {{.*}} <encBswap64Undef>:
+; DIS-NEXT:  {{.*}} 24020000    li      v0,0
+; DIS-NEXT:  {{.*}} 24030000    li      v1,0
+; DIS-NEXT:  {{.*}} 00032200    sll     a0,v1,0x8
+; DIS-NEXT:  {{.*}} 00032e02    srl     a1,v1,0x18
+; DIS-NEXT:  {{.*}} 00033202    srl     a2,v1,0x8
+; DIS-NEXT:  {{.*}} 30c6ff00    andi    a2,a2,0xff00
+; DIS-NEXT:  {{.*}} 3c0700ff    lui     a3,0xff
+; DIS-NEXT:  {{.*}} 00c53025    or      a2,a2,a1
+; DIS-NEXT:  {{.*}} 00872024    and     a0,a0,a3
+; DIS-NEXT:  {{.*}} 00031e00    sll     v1,v1,0x18
+; DIS-NEXT:  {{.*}} 00641825    or      v1,v1,a0
+; DIS-NEXT:  {{.*}} 00022602    srl     a0,v0,0x18
+; DIS-NEXT:  {{.*}} 00022a02    srl     a1,v0,0x8
+; DIS-NEXT:  {{.*}} 30a5ff00    andi    a1,a1,0xff00
+; DIS-NEXT:  {{.*}} 00661825    or      v1,v1,a2
+; DIS-NEXT:  {{.*}} 00a42825    or      a1,a1,a0
+; DIS-NEXT:  {{.*}} 00022200    sll     a0,v0,0x8
+; DIS-NEXT:  {{.*}} 00872024    and     a0,a0,a3
+; DIS-NEXT:  {{.*}} 00021600    sll     v0,v0,0x18
+; DIS-NEXT:  {{.*}} 00441025    or      v0,v0,a0
+; DIS-NEXT:  {{.*}} 00451025    or      v0,v0,a1
+; DIS-NEXT:  {{.*}} 00402021    move    a0,v0
+; DIS-NEXT:  {{.*}} 00601021    move    v0,v1
+; DIS-NEXT:  {{.*}} 00801821    move    v1,a0
+; DIS-NEXT:  {{.*}} 03e00008    jr      ra
+
+; IASM-LABEL: encBswap64Undef
+; IASM-NEXT: .LencBswap64Undef$entry:
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x22
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x2e
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x32
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xc6
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x7
+; IASM-NEXT:    .byte 0x3c
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0xc5
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0x87
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x1e
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x64
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x26
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x2a
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xa5
+; IASM-NEXT:    .byte 0x30
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x66
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x28
+; IASM-NEXT:    .byte 0xa4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x22
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x24
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0x87
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x16
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x44
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x25
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x45
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0x40
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x60
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0x18
+; IASM-NEXT:    .byte 0x80
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x8
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xe0
+; IASM-NEXT:    .byte 0x3
+
 define internal i32 @encCtlz32(i32 %x) {
 entry:
   %r = call i32 @llvm.ctlz.i32(i32 %x, i1 false)
   ret i32 %r
 }
 
 ; ASM-LABEL: encCtlz32
 ; ASM-NEXT: .LencCtlz32$entry:
 ; ASM-NEXT:     clz     $a0, $a0
 ; ASM-NEXT:     move    $v0, $a0
@@ skipping 568 matching lines @@
 
 ; DIS-LABEL: {{.*}} <encTrap>:
 ; DIS-NEXT:  {{.*}} 00000034    teq     zero,zero
 
 ; IASM-LABEL: encTrap:
 ; IASM-NEXT: .LencTrap$__0:
 ; IASM-NEXT:    .byte 0x34
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0