extract-basic.ll
1.99 KB
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; RUN: llc -O2 -march=hexagon < %s | FileCheck %s
; CHECK-DAG: extractu(r{{[0-9]*}},#3,#4)
; CHECK-DAG: extractu(r{{[0-9]*}},#8,#7)
; CHECK-DAG: extractu(r{{[0-9]*}},#8,#16)
; C source:
; typedef struct {
; unsigned x1:3;
; unsigned x2:7;
; unsigned x3:8;
; unsigned x4:12;
; unsigned x5:2;
; } structx_t;
;
; typedef struct {
; unsigned y1:4;
; unsigned y2:3;
; unsigned y3:9;
; unsigned y4:8;
; unsigned y5:8;
; } structy_t;
;
; void foo(structx_t *px, structy_t *py) {
; px->x1 = py->y1;
; px->x2 = py->y2;
; px->x3 = py->y3;
; px->x4 = py->y4;
; px->x5 = py->y5;
; }
target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
target triple = "hexagon"
%struct.structx_t = type { i8, i8, i8, i8 }
%struct.structy_t = type { i8, i8, i8, i8 }
define void @foo(%struct.structx_t* nocapture %px, %struct.structy_t* nocapture %py) nounwind {
entry:
%0 = bitcast %struct.structy_t* %py to i32*
%1 = load i32, i32* %0, align 4
%bf.value = and i32 %1, 7
%2 = bitcast %struct.structx_t* %px to i32*
%3 = load i32, i32* %2, align 4
%4 = and i32 %3, -8
%5 = or i32 %4, %bf.value
store i32 %5, i32* %2, align 4
%6 = load i32, i32* %0, align 4
%7 = lshr i32 %6, 4
%bf.clear1 = shl nuw nsw i32 %7, 3
%8 = and i32 %bf.clear1, 56
%9 = and i32 %5, -1017
%10 = or i32 %8, %9
store i32 %10, i32* %2, align 4
%11 = load i32, i32* %0, align 4
%12 = lshr i32 %11, 7
%bf.value4 = shl i32 %12, 10
%13 = and i32 %bf.value4, 261120
%14 = and i32 %10, -262081
%15 = or i32 %14, %13
store i32 %15, i32* %2, align 4
%16 = load i32, i32* %0, align 4
%17 = lshr i32 %16, 16
%bf.clear5 = shl i32 %17, 18
%18 = and i32 %bf.clear5, 66846720
%19 = and i32 %15, -1073480641
%20 = or i32 %19, %18
store i32 %20, i32* %2, align 4
%21 = load i32, i32* %0, align 4
%22 = lshr i32 %21, 24
%23 = shl i32 %22, 30
%24 = and i32 %20, 67107903
%25 = or i32 %24, %23
store i32 %25, i32* %2, align 4
ret void
}