legalize-bitcast.ll
1.81 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O0 -mtriple=armebv7 -target-abi apcs -o - %s | FileCheck %s
@vec6_p = external global <6 x i16>
define i32 @vec_to_int() {
; CHECK-LABEL: vec_to_int:
; CHECK: @ %bb.0: @ %bb.0
; CHECK-NEXT: push {r4}
; CHECK-NEXT: sub sp, sp, #28
; CHECK-NEXT: movw r0, :lower16:vec6_p
; CHECK-NEXT: movt r0, :upper16:vec6_p
; CHECK-NEXT: vld1.8 {d16}, [r0]!
; CHECK-NEXT: ldr r0, [r0]
; CHECK-NEXT: @ implicit-def: $d17
; CHECK-NEXT: vmov.32 d17[0], r0
; CHECK-NEXT: vrev32.16 d17, d17
; CHECK-NEXT: vrev16.8 d16, d16
; CHECK-NEXT: vmov.f64 d18, d16
; CHECK-NEXT: vmov.f64 d19, d17
; CHECK-NEXT: vstmia sp, {d18, d19} @ 16-byte Spill
; CHECK-NEXT: b .LBB0_1
; CHECK-NEXT: .LBB0_1: @ %bb.1
; CHECK-NEXT: vldmia sp, {d16, d17} @ 16-byte Reload
; CHECK-NEXT: vrev32.16 q9, q8
; CHECK-NEXT: @ kill: def $d19 killed $d19 killed $q9
; CHECK-NEXT: vmov.32 r0, d19[0]
; CHECK-NEXT: add sp, sp, #28
; CHECK-NEXT: pop {r4}
; CHECK-NEXT: bx lr
bb.0:
%vec6 = load <6 x i16>, <6 x i16>* @vec6_p, align 1
br label %bb.1
bb.1:
%0 = bitcast <6 x i16> %vec6 to i96
%1 = trunc i96 %0 to i32
ret i32 %1
}
define i16 @int_to_vec(i80 %in) {
; CHECK-LABEL: int_to_vec:
; CHECK: @ %bb.0:
; CHECK-NEXT: mov r3, r1
; CHECK-NEXT: mov r12, r0
; CHECK-NEXT: lsl r0, r0, #16
; CHECK-NEXT: orr r0, r0, r1, lsr #16
; CHECK-NEXT: @ implicit-def: $d16
; CHECK-NEXT: vmov.32 d16[0], r0
; CHECK-NEXT: @ implicit-def: $q9
; CHECK-NEXT: vmov.f64 d18, d16
; CHECK-NEXT: vrev32.16 q9, q9
; CHECK-NEXT: @ kill: def $d18 killed $d18 killed $q9
; CHECK-NEXT: vmov.u16 r0, d18[0]
; CHECK-NEXT: bx lr
%vec = bitcast i80 %in to <5 x i16>
%e0 = extractelement <5 x i16> %vec, i32 0
ret i16 %e0
}