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|
; RUN: llc -verify-machineinstrs %s -o - -mtriple=arm64-apple-ios7.0 | FileCheck %s
@var32 = global i32 0
@var64 = global i64 0
define void @test_lsl_arith(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
; CHECK-LABEL: test_lsl_arith:
%rhs1 = load volatile i32* @var32
%shift1 = shl i32 %rhs1, 18
%val1 = add i32 %lhs32, %shift1
store volatile i32 %val1, i32* @var32
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #18
%rhs2 = load volatile i32* @var32
%shift2 = shl i32 %rhs2, 31
%val2 = add i32 %shift2, %lhs32
store volatile i32 %val2, i32* @var32
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
%rhs3 = load volatile i32* @var32
%shift3 = shl i32 %rhs3, 5
%val3 = sub i32 %lhs32, %shift3
store volatile i32 %val3, i32* @var32
; CHECK: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #5
; Subtraction is not commutative!
%rhs4 = load volatile i32* @var32
%shift4 = shl i32 %rhs4, 19
%val4 = sub i32 %shift4, %lhs32
store volatile i32 %val4, i32* @var32
; CHECK-NOT: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #19
%lhs4a = load volatile i32* @var32
%shift4a = shl i32 %lhs4a, 15
%val4a = sub i32 0, %shift4a
store volatile i32 %val4a, i32* @var32
; CHECK: neg {{w[0-9]+}}, {{w[0-9]+}}, lsl #15
%rhs5 = load volatile i64* @var64
%shift5 = shl i64 %rhs5, 18
%val5 = add i64 %lhs64, %shift5
store volatile i64 %val5, i64* @var64
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #18
%rhs6 = load volatile i64* @var64
%shift6 = shl i64 %rhs6, 31
%val6 = add i64 %shift6, %lhs64
store volatile i64 %val6, i64* @var64
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #31
%rhs7 = load volatile i64* @var64
%shift7 = shl i64 %rhs7, 5
%val7 = sub i64 %lhs64, %shift7
store volatile i64 %val7, i64* @var64
; CHECK: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #5
; Subtraction is not commutative!
%rhs8 = load volatile i64* @var64
%shift8 = shl i64 %rhs8, 19
%val8 = sub i64 %shift8, %lhs64
store volatile i64 %val8, i64* @var64
; CHECK-NOT: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #19
%lhs8a = load volatile i64* @var64
%shift8a = shl i64 %lhs8a, 60
%val8a = sub i64 0, %shift8a
store volatile i64 %val8a, i64* @var64
; CHECK: neg {{x[0-9]+}}, {{x[0-9]+}}, lsl #60
ret void
; CHECK: ret
}
define void @test_lsr_arith(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
; CHECK-LABEL: test_lsr_arith:
%shift1 = lshr i32 %rhs32, 18
%val1 = add i32 %lhs32, %shift1
store volatile i32 %val1, i32* @var32
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #18
%shift2 = lshr i32 %rhs32, 31
%val2 = add i32 %shift2, %lhs32
store volatile i32 %val2, i32* @var32
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #31
%shift3 = lshr i32 %rhs32, 5
%val3 = sub i32 %lhs32, %shift3
store volatile i32 %val3, i32* @var32
; CHECK: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #5
; Subtraction is not commutative!
%shift4 = lshr i32 %rhs32, 19
%val4 = sub i32 %shift4, %lhs32
store volatile i32 %val4, i32* @var32
; CHECK-NOT: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #19
%shift4a = lshr i32 %lhs32, 15
%val4a = sub i32 0, %shift4a
store volatile i32 %val4a, i32* @var32
; CHECK: neg {{w[0-9]+}}, {{w[0-9]+}}, lsr #15
%shift5 = lshr i64 %rhs64, 18
%val5 = add i64 %lhs64, %shift5
store volatile i64 %val5, i64* @var64
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #18
%shift6 = lshr i64 %rhs64, 31
%val6 = add i64 %shift6, %lhs64
store volatile i64 %val6, i64* @var64
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #31
%shift7 = lshr i64 %rhs64, 5
%val7 = sub i64 %lhs64, %shift7
store volatile i64 %val7, i64* @var64
; CHECK: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #5
; Subtraction is not commutative!
%shift8 = lshr i64 %rhs64, 19
%val8 = sub i64 %shift8, %lhs64
store volatile i64 %val8, i64* @var64
; CHECK-NOT: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #19
%shift8a = lshr i64 %lhs64, 45
%val8a = sub i64 0, %shift8a
store volatile i64 %val8a, i64* @var64
; CHECK: neg {{x[0-9]+}}, {{x[0-9]+}}, lsr #45
ret void
; CHECK: ret
}
define void @test_asr_arith(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
; CHECK-LABEL: test_asr_arith:
%shift1 = ashr i32 %rhs32, 18
%val1 = add i32 %lhs32, %shift1
store volatile i32 %val1, i32* @var32
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #18
%shift2 = ashr i32 %rhs32, 31
%val2 = add i32 %shift2, %lhs32
store volatile i32 %val2, i32* @var32
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #31
%shift3 = ashr i32 %rhs32, 5
%val3 = sub i32 %lhs32, %shift3
store volatile i32 %val3, i32* @var32
; CHECK: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #5
; Subtraction is not commutative!
%shift4 = ashr i32 %rhs32, 19
%val4 = sub i32 %shift4, %lhs32
store volatile i32 %val4, i32* @var32
; CHECK-NOT: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #19
%shift4a = ashr i32 %lhs32, 15
%val4a = sub i32 0, %shift4a
store volatile i32 %val4a, i32* @var32
; CHECK: neg {{w[0-9]+}}, {{w[0-9]+}}, asr #15
%shift5 = ashr i64 %rhs64, 18
%val5 = add i64 %lhs64, %shift5
store volatile i64 %val5, i64* @var64
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #18
%shift6 = ashr i64 %rhs64, 31
%val6 = add i64 %shift6, %lhs64
store volatile i64 %val6, i64* @var64
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #31
%shift7 = ashr i64 %rhs64, 5
%val7 = sub i64 %lhs64, %shift7
store volatile i64 %val7, i64* @var64
; CHECK: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #5
; Subtraction is not commutative!
%shift8 = ashr i64 %rhs64, 19
%val8 = sub i64 %shift8, %lhs64
store volatile i64 %val8, i64* @var64
; CHECK-NOT: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #19
%shift8a = ashr i64 %lhs64, 45
%val8a = sub i64 0, %shift8a
store volatile i64 %val8a, i64* @var64
; CHECK: neg {{x[0-9]+}}, {{x[0-9]+}}, asr #45
ret void
; CHECK: ret
}
define i32 @test_cmp(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
; CHECK-LABEL: test_cmp:
%shift1 = shl i32 %rhs32, 13
%tst1 = icmp uge i32 %lhs32, %shift1
br i1 %tst1, label %t2, label %end
; CHECK: cmp {{w[0-9]+}}, {{w[0-9]+}}, lsl #13
t2:
%shift2 = lshr i32 %rhs32, 20
%tst2 = icmp ne i32 %lhs32, %shift2
br i1 %tst2, label %t3, label %end
; CHECK: cmp {{w[0-9]+}}, {{w[0-9]+}}, lsr #20
t3:
%shift3 = ashr i32 %rhs32, 9
%tst3 = icmp ne i32 %lhs32, %shift3
br i1 %tst3, label %t4, label %end
; CHECK: cmp {{w[0-9]+}}, {{w[0-9]+}}, asr #9
t4:
%shift4 = shl i64 %rhs64, 43
%tst4 = icmp uge i64 %lhs64, %shift4
br i1 %tst4, label %t5, label %end
; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}}, lsl #43
t5:
%shift5 = lshr i64 %rhs64, 20
%tst5 = icmp ne i64 %lhs64, %shift5
br i1 %tst5, label %t6, label %end
; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}}, lsr #20
t6:
%shift6 = ashr i64 %rhs64, 59
%tst6 = icmp ne i64 %lhs64, %shift6
br i1 %tst6, label %t7, label %end
; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}}, asr #59
t7:
ret i32 1
end:
ret i32 0
; CHECK: ret
}
define i32 @test_cmn(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
; CHECK-LABEL: test_cmn:
%shift1 = shl i32 %rhs32, 13
%val1 = sub i32 0, %shift1
%tst1 = icmp uge i32 %lhs32, %val1
br i1 %tst1, label %t2, label %end
; Important that this isn't lowered to a cmn instruction because if %rhs32 ==
; 0 then the results will differ.
; CHECK: neg [[RHS:w[0-9]+]], {{w[0-9]+}}, lsl #13
; CHECK: cmp {{w[0-9]+}}, [[RHS]]
t2:
%shift2 = lshr i32 %rhs32, 20
%val2 = sub i32 0, %shift2
%tst2 = icmp ne i32 %lhs32, %val2
br i1 %tst2, label %t3, label %end
; CHECK: cmn {{w[0-9]+}}, {{w[0-9]+}}, lsr #20
t3:
%shift3 = ashr i32 %rhs32, 9
%val3 = sub i32 0, %shift3
%tst3 = icmp eq i32 %lhs32, %val3
br i1 %tst3, label %t4, label %end
; CHECK: cmn {{w[0-9]+}}, {{w[0-9]+}}, asr #9
t4:
%shift4 = shl i64 %rhs64, 43
%val4 = sub i64 0, %shift4
%tst4 = icmp slt i64 %lhs64, %val4
br i1 %tst4, label %t5, label %end
; Again, it's important that cmn isn't used here in case %rhs64 == 0.
; CHECK: neg [[RHS:x[0-9]+]], {{x[0-9]+}}, lsl #43
; CHECK: cmp {{x[0-9]+}}, [[RHS]]
t5:
%shift5 = lshr i64 %rhs64, 20
%val5 = sub i64 0, %shift5
%tst5 = icmp ne i64 %lhs64, %val5
br i1 %tst5, label %t6, label %end
; CHECK: cmn {{x[0-9]+}}, {{x[0-9]+}}, lsr #20
t6:
%shift6 = ashr i64 %rhs64, 59
%val6 = sub i64 0, %shift6
%tst6 = icmp ne i64 %lhs64, %val6
br i1 %tst6, label %t7, label %end
; CHECK: cmn {{x[0-9]+}}, {{x[0-9]+}}, asr #59
t7:
ret i32 1
end:
ret i32 0
; CHECK: ret
}
|
