| ; RUN: llc -march=hexagon -O3 -hexagon-small-data-threshold=0 < %s | FileCheck %s |
| ; This lit test validates that storetrunc for a 64bit value picks a store |
| ; absolute pattern instead of base + index store pattern. This will facilitate |
| ; the constant extender optimization pass to move the immediate value to a register |
| ; if there are more than two uses and replace all the uses of the constant. |
| ; Generation of absolute pattern for a 64 bit truncated value also aviods an |
| ; extra move. |
| |
| @g0 = external global i8, align 8 |
| @g1 = external global i16, align 8 |
| @g2 = external global i32, align 8 |
| |
| ; CHECK-LABEL: f0: |
| ; CHECK: memd(##441656) = r{{[0-9]+}} |
| define void @f0(i64 %a0) #0 { |
| b0: |
| store volatile i64 %a0, i64* inttoptr (i32 441656 to i64*) |
| ret void |
| } |
| |
| ; CHECK-LABEL: f1: |
| ; CHECK: memw(##441656) = r{{[0-9]+}} |
| define void @f1(i64 %a0) #0 { |
| b0: |
| %v0 = trunc i64 %a0 to i32 |
| store volatile i32 %v0, i32* inttoptr (i32 441656 to i32*) |
| ret void |
| } |
| |
| ; CHECK-LABEL: f2: |
| ; CHECK: memh(##441656) = r{{[0-9]+}} |
| define void @f2(i64 %a0) #0 { |
| b0: |
| %v0 = trunc i64 %a0 to i16 |
| store volatile i16 %v0, i16* inttoptr (i32 441656 to i16*) |
| ret void |
| } |
| |
| ; CHECK-LABEL: f3: |
| ; CHECK: memb(##441656) = r{{[0-9]+}} |
| define void @f3(i64 %a0) #0 { |
| b0: |
| %v0 = trunc i64 %a0 to i8 |
| store volatile i8 %v0, i8* inttoptr (i32 441656 to i8*) |
| ret void |
| } |
| |
| ; CHECK-LABEL: f4: |
| ; CHECK: memw(##g2) = r{{[0-9]+}} |
| define void @f4(i64 %a0) #0 { |
| b0: |
| %v0 = trunc i64 %a0 to i32 |
| store volatile i32 %v0, i32* @g2 |
| ret void |
| } |
| |
| ; CHECK-LABEL: f5: |
| ; CHECK: memh(##g1) = r{{[0-9]+}} |
| define void @f5(i64 %a0) #0 { |
| b0: |
| %v0 = trunc i64 %a0 to i16 |
| store volatile i16 %v0, i16* @g1 |
| ret void |
| } |
| |
| ; CHECK-LABEL: f6: |
| ; CHECK: memb(##g0) = r{{[0-9]+}} |
| define void @f6(i64 %a0) #0 { |
| b0: |
| %v0 = trunc i64 %a0 to i8 |
| store volatile i8 %v0, i8* @g0 |
| ret void |
| } |
| |
| attributes #0 = { nounwind } |