shift_minsize.ll
920 Bytes
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; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
; RUN: llc -mtriple=thumbv7-windows %s -o - | FileCheck %s -check-prefix=CHECK-WIN
; The Windows runtime doesn't have these.
; CHECK-WIN-NOT: __ashldi3
; CHECK-WIN-NOT: __ashrdi3
; CHECK-WIN-NOT: __lshrdi3
define i64 @f0(i64 %val, i64 %amt) minsize optsize {
; CHECK-LABEL: f0:
; CHECK: bl __aeabi_llsl
%res = shl i64 %val, %amt
ret i64 %res
}
define i32 @f1(i64 %x, i64 %y) minsize optsize {
; CHECK-LABEL: f1:
; CHECK: bl __aeabi_llsl
%a = shl i64 %x, %y
%b = trunc i64 %a to i32
ret i32 %b
}
define i32 @f2(i64 %x, i64 %y) minsize optsize {
; CHECK-LABEL: f2:
; CHECK: bl __aeabi_lasr
%a = ashr i64 %x, %y
%b = trunc i64 %a to i32
ret i32 %b
}
define i32 @f3(i64 %x, i64 %y) minsize optsize {
; CHECK-LABEL: f3:
; CHECK: bl __aeabi_llsr
%a = lshr i64 %x, %y
%b = trunc i64 %a to i32
ret i32 %b
}