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121 lines
3.3 KiB
LLVM
121 lines
3.3 KiB
LLVM
; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
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; CHECK: test1
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; CHECK: pkhbt r0, r0, r1, lsl #16
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define i32 @test1(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp4 = shl i32 %Y, 16 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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; CHECK: test1a
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; CHECK: pkhbt r0, r0, r1, lsl #16
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define i32 @test1a(i32 %X, i32 %Y) {
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%tmp19 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp37 = shl i32 %Y, 16 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp37, %tmp19 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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; CHECK: test2
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; CHECK: pkhbt r0, r0, r1, lsl #12
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define i32 @test2(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp3 = shl i32 %Y, 12 ; <i32> [#uses=1]
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%tmp4 = and i32 %tmp3, -65536 ; <i32> [#uses=1]
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%tmp57 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp57
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}
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; CHECK: test3
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; CHECK: pkhbt r0, r0, r1, lsl #18
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define i32 @test3(i32 %X, i32 %Y) {
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%tmp19 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp37 = shl i32 %Y, 18 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp37, %tmp19 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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; CHECK: test4
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; CHECK: pkhbt r0, r0, r1
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define i32 @test4(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp3 = and i32 %Y, -65536 ; <i32> [#uses=1]
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%tmp46 = or i32 %tmp3, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp46
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}
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; CHECK: test5
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; CHECK: pkhtb r0, r0, r1, asr #16
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define i32 @test5(i32 %X, i32 %Y) {
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%tmp17 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp2 = bitcast i32 %Y to i32 ; <i32> [#uses=1]
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%tmp4 = lshr i32 %tmp2, 16 ; <i32> [#uses=2]
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%tmp5 = or i32 %tmp4, %tmp17 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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; CHECK: test5a
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; CHECK: pkhtb r0, r0, r1, asr #16
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define i32 @test5a(i32 %X, i32 %Y) {
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%tmp110 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp37 = lshr i32 %Y, 16 ; <i32> [#uses=1]
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%tmp39 = bitcast i32 %tmp37 to i32 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp39, %tmp110 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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; CHECK: test6
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; CHECK: pkhtb r0, r0, r1, asr #12
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define i32 @test6(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp37 = lshr i32 %Y, 12 ; <i32> [#uses=1]
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%tmp38 = bitcast i32 %tmp37 to i32 ; <i32> [#uses=1]
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%tmp4 = and i32 %tmp38, 65535 ; <i32> [#uses=1]
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%tmp59 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp59
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}
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; CHECK: test7
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; CHECK: pkhtb r0, r0, r1, asr #18
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define i32 @test7(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp3 = ashr i32 %Y, 18 ; <i32> [#uses=1]
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%tmp4 = and i32 %tmp3, 65535 ; <i32> [#uses=1]
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%tmp57 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp57
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}
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; CHECK: test8
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; CHECK-NOT: pkhtb r0, r0, r1, asr #22
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; pkhtb does an arithmetic shift, not a logical shift. Make sure we don't
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; use it for problematic cases when whether sign bits would be shifted in
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; would matter.
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define i32 @test8(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, -65536
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%tmp3 = lshr i32 %Y, 22
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%tmp57 = or i32 %tmp3, %tmp1
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ret i32 %tmp57
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}
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; CHECK-LABEL: test9:
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; CHECK: pkhtb r0, r0, r1, asr #16
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define i32 @test9(i32 %src1, i32 %src2) {
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entry:
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%tmp = and i32 %src1, -65536
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%tmp2 = lshr i32 %src2, 16
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%tmp3 = or i32 %tmp, %tmp2
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ret i32 %tmp3
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}
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; CHECK: test10
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; CHECK: pkhtb r0, r0, r1, asr #22
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define i32 @test10(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, -65536
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%tmp3 = ashr i32 %Y, 22
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%tmp57 = or i32 %tmp3, %tmp1
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ret i32 %tmp57
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}
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