| ; RUN: llc -mtriple=aarch64-none-linux-gnu -max-bytes-for-alignment=8 --align-loops=32 < %s -o -| FileCheck %s --check-prefixes=CHECK,CHECK-EXPLICIT |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu --align-loops=32 < %s -o -| FileCheck %s --check-prefixes=CHECK,CHECK-IMPLICIT |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu --align-loops=32 < %s -o - --filetype=obj | llvm-objdump --arch=aarch64 -d -| FileCheck %s --check-prefixes=CHECK-OBJ,CHECK-OBJ-IMPLICIT |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -max-bytes-for-alignment=8 --align-loops=32 < %s -o - --filetype=obj | llvm-objdump --arch=aarch64 -d -| FileCheck %s --check-prefixes=CHECK-OBJ,CHECK-OBJ-EXPLICIT |
| |
| ; This test is checking that the correct operands to the .p2align are emitted correctly, and that the resulting obj |
| ; is padded as expected. The key interest in the CHECK-OBJ-* sections is the size of the padding region (the nops), |
| ; and not the exact instructions either side of them (But the last instruction of the EXPLICIT and IMPLICIT checks |
| ; should be the same, at different locations) |
| define i32 @a(i32 %x, i32* nocapture readonly %y, i32* nocapture readonly %z) { |
| ; CHECK-LABEL: a: |
| ; CHECK-EXPLICIT: .p2align 5, 0x0, 8 |
| ; CHECK-IMPLICIT: .p2align 5 |
| ; CHECK-NEXT: .LBB0_5: // %vector.body |
| ; CHECK-EXPLICIT: .p2align 5, 0x0, 8 |
| ; CHECK-IMPLICIT: .p2align 5 |
| ; CHECK-NEXT: .LBB0_8: // %for.body |
| ; CHECK-OBJ;Disassembly of section .text: |
| ; CHECK-OBJ: 88: 8b0a002a add |
| ; CHECK-OBJ-IMPLICIT-NEXT: 8c: d503201f nop |
| ; CHECK-OBJ-IMPLICIT-NEXT: 90: d503201f nop |
| ; CHECK-OBJ-IMPLICIT-NEXT: 94: d503201f nop |
| ; CHECK-OBJ-IMPLICIT-NEXT: 98: d503201f nop |
| ; CHECK-OBJ-IMPLICIT-NEXT: 9c: d503201f nop |
| ; CHECK-OBJ-IMPLICIT-NEXT: a0: b840454b ldr |
| ; CHECK-OBJ-EXPLICIT-NEXT: 8c: b840454b ldr |
| entry: |
| %cmp10 = icmp sgt i32 %x, 0 |
| br i1 %cmp10, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| %wide.trip.count = zext i32 %x to i64 |
| %min.iters.check = icmp ult i32 %x, 8 |
| br i1 %min.iters.check, label %for.body.preheader17, label %vector.ph |
| |
| vector.ph: ; preds = %for.body.preheader |
| %n.vec = and i64 %wide.trip.count, 4294967288 |
| br label %vector.body |
| |
| vector.body: ; preds = %vector.body, %vector.ph |
| %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ] |
| %vec.phi = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %10, %vector.body ] |
| %vec.phi13 = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %11, %vector.body ] |
| %0 = getelementptr inbounds i32, i32* %y, i64 %index |
| %1 = bitcast i32* %0 to <4 x i32>* |
| %wide.load = load <4 x i32>, <4 x i32>* %1, align 4 |
| %2 = getelementptr inbounds i32, i32* %0, i64 4 |
| %3 = bitcast i32* %2 to <4 x i32>* |
| %wide.load14 = load <4 x i32>, <4 x i32>* %3, align 4 |
| %4 = getelementptr inbounds i32, i32* %z, i64 %index |
| %5 = bitcast i32* %4 to <4 x i32>* |
| %wide.load15 = load <4 x i32>, <4 x i32>* %5, align 4 |
| %6 = getelementptr inbounds i32, i32* %4, i64 4 |
| %7 = bitcast i32* %6 to <4 x i32>* |
| %wide.load16 = load <4 x i32>, <4 x i32>* %7, align 4 |
| %8 = add <4 x i32> %wide.load, %vec.phi |
| %9 = add <4 x i32> %wide.load14, %vec.phi13 |
| %10 = add <4 x i32> %8, %wide.load15 |
| %11 = add <4 x i32> %9, %wide.load16 |
| %index.next = add nuw i64 %index, 8 |
| %12 = icmp eq i64 %index.next, %n.vec |
| br i1 %12, label %middle.block, label %vector.body |
| |
| middle.block: ; preds = %vector.body |
| %bin.rdx = add <4 x i32> %11, %10 |
| %13 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %bin.rdx) |
| %cmp.n = icmp eq i64 %n.vec, %wide.trip.count |
| br i1 %cmp.n, label %for.cond.cleanup, label %for.body.preheader17 |
| |
| for.body.preheader17: ; preds = %for.body.preheader, %middle.block |
| %indvars.iv.ph = phi i64 [ 0, %for.body.preheader ], [ %n.vec, %middle.block ] |
| %b.011.ph = phi i32 [ 0, %for.body.preheader ], [ %13, %middle.block ] |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body, %middle.block, %entry |
| %b.0.lcssa = phi i32 [ 0, %entry ], [ %13, %middle.block ], [ %add3, %for.body ] |
| ret i32 %b.0.lcssa |
| |
| for.body: ; preds = %for.body.preheader17, %for.body |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %indvars.iv.ph, %for.body.preheader17 ] |
| %b.011 = phi i32 [ %add3, %for.body ], [ %b.011.ph, %for.body.preheader17 ] |
| %arrayidx = getelementptr inbounds i32, i32* %y, i64 %indvars.iv |
| %14 = load i32, i32* %arrayidx, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32* %z, i64 %indvars.iv |
| %15 = load i32, i32* %arrayidx2, align 4 |
| %add = add i32 %14, %b.011 |
| %add3 = add i32 %add, %15 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>) |