Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/ARM/shift-i64.ll

@@ -1,59 +0,0 @@
-; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
-
-define i64 @test_shl(i64 %val, i64 %amt) {
-; CHECK-LABEL: test_shl:
-  ; First calculate the hi part when the shift amount is small enough that it
-  ; contains components from both halves. It'll be returned in r1 so that's a
-  ; reasonable place for it to end up.
-; CHECK: rsb [[REVERSE_SHIFT:.*]], r2, #32
-; CHECK: lsr [[TMP:.*]], r0, [[REVERSE_SHIFT]]
-; CHECK: orr r1, [[TMP]], r1, lsl r2
-
-  ; Check whether the shift was in fact small (< 32 bits).
-; CHECK: sub [[EXTRA_SHIFT:.*]], r2, #32
-; CHECK: cmp [[EXTRA_SHIFT]], #0
-
-  ; If not, the high part of the answer is just the low part shifted by the
-  ; excess.
-; CHECK: lslge r1, r0, [[EXTRA_SHIFT]]
-
-  ; The low part is either a direct shift (1st inst) or 0. We can reuse the same
-  ; NZCV.
-; CHECK: lsl r0, r0, r2
-; CHECK: movge r0, #0
-
-  %res = shl i64 %val, %amt
-  ret i64 %res
-}
-
-; Explanation for lshr is pretty much the reverse of shl.
-define i64 @test_lshr(i64 %val, i64 %amt) {
-; CHECK-LABEL: test_lshr:
-; CHECK: rsb [[REVERSE_SHIFT:.*]], r2, #32
-; CHECK: lsr r0, r0, r2
-; CHECK: orr r0, r0, r1, lsl [[REVERSE_SHIFT]]
-; CHECK: sub [[EXTRA_SHIFT:.*]], r2, #32
-; CHECK: cmp [[EXTRA_SHIFT]], #0
-; CHECK: lsrge r0, r1, [[EXTRA_SHIFT]]
-; CHECK: lsr r1, r1, r2
-; CHECK: movge r1, #0
-  %res = lshr i64 %val, %amt
-  ret i64 %res
-}
-
-; One minor difference for ashr: the high bits must be "hi >> 31" if the shift
-; amount is large to get the right sign bit.
-define i64 @test_ashr(i64 %val, i64 %amt) {
-; CHECK-LABEL: test_ashr:
-; CHECK: sub [[EXTRA_SHIFT:.*]], r2, #32
-; CHECK: asr [[HI_TMP:.*]], r1, r2
-; CHECK: lsr r0, r0, r2
-; CHECK: rsb [[REVERSE_SHIFT:.*]], r2, #32
-; CHECK: cmp [[EXTRA_SHIFT]], #0
-; CHECK: orr r0, r0, r1, lsl [[REVERSE_SHIFT]]
-; CHECK: asrge [[HI_TMP]], r1, #31
-; CHECK: asrge r0, r1, [[EXTRA_SHIFT]]
-; CHECK: mov r1, [[HI_TMP]]
-  %res = ashr i64 %val, %amt
-  ret i64 %res
-}