mirror of
https://github.com/c64scene-ar/llvm-6502.git
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12bb2958c4
An alternative syntax is available for a modified immediate constant that permits the programmer to specify
the encoding directly. In this syntax, #<const> is instead written as #<byte>,#<rot>, where:
<byte> is the numeric value of abcdefgh, in the range 0-255
<rot> is twice the numeric value of rotation, an even number in the range 0-30.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128897 91177308-0d34-0410-b5e6-96231b3b80d8
238 lines
6.8 KiB
LLVM
238 lines
6.8 KiB
LLVM
;RUN: llc -mtriple=armv7-apple-darwin -show-mc-encoding -disable-cgp-branch-opts < %s | FileCheck %s
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;FIXME: Once the ARM integrated assembler is up and going, these sorts of tests
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; should run on .s source files rather than using llc to generate the
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; assembly. There's also a large number of instruction encodings the
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; compiler never generates, so we need the integrated assembler to be
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; able to test those at all.
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declare void @llvm.trap() nounwind
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declare i32 @llvm.ctlz.i32(i32)
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define i32 @foo(i32 %a, i32 %b) {
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; CHECK: foo
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; CHECK: trap @ encoding: [0xfe,0xde,0xff,0xe7]
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; CHECK: bx lr @ encoding: [0x1e,0xff,0x2f,0xe1]
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tail call void @llvm.trap()
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ret i32 undef
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}
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define i32 @f2(i32 %a, i32 %b) {
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; CHECK: f2
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; CHECK: add r0, r1, r0 @ encoding: [0x00,0x00,0x81,0xe0]
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; CHECK: bx lr @ encoding: [0x1e,0xff,0x2f,0xe1]
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%add = add nsw i32 %b, %a
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ret i32 %add
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}
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define i32 @f3(i32 %a, i32 %b) {
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; CHECK: f3
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; CHECK: add r0, r0, r1, lsl #3 @ encoding: [0x81,0x01,0x80,0xe0]
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; CHECK: bx lr @ encoding: [0x1e,0xff,0x2f,0xe1]
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%mul = shl i32 %b, 3
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%add = add nsw i32 %mul, %a
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ret i32 %add
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}
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define i32 @f4(i32 %a, i32 %b) {
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; CHECK: f4
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; CHECK: add r0, r0, #254, #28 @ encoding: [0xfe,0x0e,0x80,0xe2]
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; CHECK: @ 4064
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; CHECK: bx lr @ encoding: [0x1e,0xff,0x2f,0xe1]
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%add = add nsw i32 %a, 4064
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ret i32 %add
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}
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define i32 @f5(i32 %a, i32 %b, i32 %c) {
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; CHECK: f5
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; CHECK: cmp r0, r1 @ encoding: [0x01,0x00,0x50,0xe1]
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; CHECK: mov r0, r2 @ encoding: [0x02,0x00,0xa0,0xe1]
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; CHECK: movgt r0, r1 @ encoding: [0x01,0x00,0xa0,0xc1]
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%cmp = icmp sgt i32 %a, %b
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%retval.0 = select i1 %cmp, i32 %b, i32 %c
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ret i32 %retval.0
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}
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define i64 @f6(i64 %a, i64 %b, i64 %c) {
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; CHECK: f6
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; CHECK: adds r0, r2, r0 @ encoding: [0x00,0x00,0x92,0xe0]
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; CHECK: adc r1, r3, r1 @ encoding: [0x01,0x10,0xa3,0xe0]
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%add = add nsw i64 %b, %a
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ret i64 %add
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}
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define i32 @f7(i32 %a, i32 %b) {
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; CHECK: f7
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; CHECK: uxtab r0, r0, r1 @ encoding: [0x71,0x00,0xe0,0xe6]
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%and = and i32 %b, 255
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%add = add i32 %and, %a
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ret i32 %add
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}
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define i32 @f8(i32 %a) {
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; CHECK: f8
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; CHECK: movt r0, #42405 @ encoding: [0xa5,0x05,0x4a,0xe3]
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%and = and i32 %a, 65535
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%or = or i32 %and, -1515913216
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ret i32 %or
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}
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define i32 @f9() {
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; CHECK: f9
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; CHECK: movw r0, #42405 @ encoding: [0xa5,0x05,0x0a,0xe3]
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ret i32 42405
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}
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define i64 @f10(i64 %a) {
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; CHECK: f10
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; CHECK: asrs r1, r1, #1 @ encoding: [0xc1,0x10,0xb0,0xe1]
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; CHECK: rrx r0, r0 @ encoding: [0x60,0x00,0xa0,0xe1]
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%shr = ashr i64 %a, 1
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ret i64 %shr
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}
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define i32 @f11([1 x i32] %A.coerce0, [1 x i32] %B.coerce0) {
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; CHECK: f11
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; CHECK: ubfx r1, r1, #8, #5 @ encoding: [0x51,0x14,0xe4,0xe7]
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; CHECK: sbfx r0, r0, #13, #7 @ encoding: [0xd0,0x06,0xa6,0xe7]
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%tmp1 = extractvalue [1 x i32] %A.coerce0, 0
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%tmp2 = extractvalue [1 x i32] %B.coerce0, 0
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%tmp3 = shl i32 %tmp1, 12
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%bf.val.sext = ashr i32 %tmp3, 25
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%tmp4 = lshr i32 %tmp2, 8
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%bf.clear2 = and i32 %tmp4, 31
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%mul = mul nsw i32 %bf.val.sext, %bf.clear2
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ret i32 %mul
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}
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define i32 @f12(i32 %a) {
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; CHECK: f12:
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; CHECK: bfc r0, #4, #20 @ encoding: [0x1f,0x02,0xd7,0xe7]
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%tmp = and i32 %a, 4278190095
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ret i32 %tmp
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}
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define i64 @f13() {
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; CHECK: f13:
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; CHECK: mvn r0, #0 @ encoding: [0x00,0x00,0xe0,0xe3]
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; CHECK: mvn r1, #2, #2 @ encoding: [0x02,0x11,0xe0,0xe3]
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ret i64 9223372036854775807
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}
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define i32 @f14(i32 %x, i32 %y) {
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; CHECK: f14:
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; CHECK: smmul r0, r1, r0 @ encoding: [0x11,0xf0,0x50,0xe7]
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%tmp = sext i32 %x to i64
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%tmp1 = sext i32 %y to i64
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%tmp2 = mul i64 %tmp1, %tmp
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%tmp3 = lshr i64 %tmp2, 32
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%tmp3.upgrd.1 = trunc i64 %tmp3 to i32
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ret i32 %tmp3.upgrd.1
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}
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define i32 @f15(i32 %x, i32 %y) {
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; CHECK: f15:
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; CHECK: umull r1, r0, r1, r0 @ encoding: [0x91,0x10,0x80,0xe0]
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%tmp = zext i32 %x to i64
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%tmp1 = zext i32 %y to i64
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%tmp2 = mul i64 %tmp1, %tmp
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%tmp3 = lshr i64 %tmp2, 32
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%tmp3.upgrd.2 = trunc i64 %tmp3 to i32
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ret i32 %tmp3.upgrd.2
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}
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define i32 @f16(i16 %x, i32 %y) {
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; CHECK: f16:
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; CHECK: smulbt r0, r0, r1 @ encoding: [0xc0,0x01,0x60,0xe1]
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%tmp1 = add i16 %x, 2
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%tmp2 = sext i16 %tmp1 to i32
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%tmp3 = ashr i32 %y, 16
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%tmp4 = mul i32 %tmp2, %tmp3
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ret i32 %tmp4
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}
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define i32 @f17(i32 %x, i32 %y) {
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; CHECK: f17:
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; CHECK: smultt r0, r1, r0 @ encoding: [0xe1,0x00,0x60,0xe1]
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%tmp1 = ashr i32 %x, 16
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%tmp3 = ashr i32 %y, 16
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%tmp4 = mul i32 %tmp3, %tmp1
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ret i32 %tmp4
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}
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define i32 @f18(i32 %a, i16 %x, i32 %y) {
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; CHECK: f18:
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; CHECK: smlabt r0, r1, r2, r0 @ encoding: [0xc1,0x02,0x00,0xe1]
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%tmp = sext i16 %x to i32
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%tmp2 = ashr i32 %y, 16
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%tmp3 = mul i32 %tmp2, %tmp
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%tmp5 = add i32 %tmp3, %a
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ret i32 %tmp5
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}
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define i32 @f19(i32 %x) {
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; CHECK: f19
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; CHECK: clz r0, r0 @ encoding: [0x10,0x0f,0x6f,0xe1]
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%tmp.1 = call i32 @llvm.ctlz.i32( i32 %x )
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ret i32 %tmp.1
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}
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define i32 @f20(i32 %X) {
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; CHECK: f20
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; CHECK: rev16 r0, r0 @ encoding: [0xb0,0x0f,0xbf,0xe6]
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%tmp1 = lshr i32 %X, 8
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%X15 = bitcast i32 %X to i32
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%tmp4 = shl i32 %X15, 8
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%tmp2 = and i32 %tmp1, 16711680
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%tmp5 = and i32 %tmp4, -16777216
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%tmp9 = and i32 %tmp1, 255
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%tmp13 = and i32 %tmp4, 65280
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%tmp6 = or i32 %tmp5, %tmp2
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%tmp10 = or i32 %tmp6, %tmp13
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%tmp14 = or i32 %tmp10, %tmp9
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ret i32 %tmp14
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}
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define i32 @f21(i32 %X) {
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; CHECK: f21
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; CHECK: revsh r0, r0 @ encoding: [0xb0,0x0f,0xff,0xe6]
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%tmp1 = lshr i32 %X, 8
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%tmp1.upgrd.1 = trunc i32 %tmp1 to i16
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%tmp3 = trunc i32 %X to i16
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%tmp2 = and i16 %tmp1.upgrd.1, 255
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%tmp4 = shl i16 %tmp3, 8
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%tmp5 = or i16 %tmp2, %tmp4
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%tmp5.upgrd.2 = sext i16 %tmp5 to i32
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ret i32 %tmp5.upgrd.2
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}
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define i32 @f22(i32 %X, i32 %Y) {
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; CHECK: f22
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; CHECK: pkhtb r0, r0, r1, asr #22 @ encoding: [0x51,0x0b,0x80,0xe6]
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%tmp1 = and i32 %X, -65536
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%tmp2 = lshr i32 %Y, 22
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%tmp3 = or i32 %tmp2, %tmp1
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ret i32 %tmp3
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}
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define i32 @f23(i32 %X, i32 %Y) {
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; CHECK: f23
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; CHECK: pkhbt r0, r0, r1, lsl #18 @ encoding: [0x11,0x09,0x80,0xe6]
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%tmp1 = and i32 %X, 65535
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%tmp2 = shl i32 %Y, 18
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%tmp3 = or i32 %tmp1, %tmp2
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ret i32 %tmp3
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}
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define void @f24(i32 %a) {
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; CHECK: f24
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; CHECK: cmp r0, #1, #16 @ encoding: [0x01,0x08,0x50,0xe3]
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%b = icmp ugt i32 %a, 65536
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br i1 %b, label %r, label %r
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r:
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ret void
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}
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