76 lines · plain
1; RUN: llc -mtriple=hexagon -O3 -hexagon-small-data-threshold=0 < %s | FileCheck %s2; This lit test validates that storetrunc for a 64bit value picks a store3; absolute pattern instead of base + index store pattern. This will facilitate4; the constant extender optimization pass to move the immediate value to a register5; if there are more than two uses and replace all the uses of the constant.6; Generation of absolute pattern for a 64 bit truncated value also aviods an7; extra move.8 9@g0 = external global i8, align 810@g1 = external global i16, align 811@g2 = external global i32, align 812 13; CHECK-LABEL: f0:14; CHECK: memd(##441656) = r{{[0-9]+}}15define void @f0(i64 %a0) #0 {16b0:17 store volatile i64 %a0, ptr inttoptr (i32 441656 to ptr)18 ret void19}20 21; CHECK-LABEL: f1:22; CHECK: memw(##441656) = r{{[0-9]+}}23define void @f1(i64 %a0) #0 {24b0:25 %v0 = trunc i64 %a0 to i3226 store volatile i32 %v0, ptr inttoptr (i32 441656 to ptr)27 ret void28}29 30; CHECK-LABEL: f2:31; CHECK: memh(##441656) = r{{[0-9]+}}32define void @f2(i64 %a0) #0 {33b0:34 %v0 = trunc i64 %a0 to i1635 store volatile i16 %v0, ptr inttoptr (i32 441656 to ptr)36 ret void37}38 39; CHECK-LABEL: f3:40; CHECK: memb(##441656) = r{{[0-9]+}}41define void @f3(i64 %a0) #0 {42b0:43 %v0 = trunc i64 %a0 to i844 store volatile i8 %v0, ptr inttoptr (i32 441656 to ptr)45 ret void46}47 48; CHECK-LABEL: f4:49; CHECK: memw(##g2) = r{{[0-9]+}}50define void @f4(i64 %a0) #0 {51b0:52 %v0 = trunc i64 %a0 to i3253 store volatile i32 %v0, ptr @g254 ret void55}56 57; CHECK-LABEL: f5:58; CHECK: memh(##g1) = r{{[0-9]+}}59define void @f5(i64 %a0) #0 {60b0:61 %v0 = trunc i64 %a0 to i1662 store volatile i16 %v0, ptr @g163 ret void64}65 66; CHECK-LABEL: f6:67; CHECK: memb(##g0) = r{{[0-9]+}}68define void @f6(i64 %a0) #0 {69b0:70 %v0 = trunc i64 %a0 to i871 store volatile i8 %v0, ptr @g072 ret void73}74 75attributes #0 = { nounwind }76