76274eb2b3
Reverting because mis-compiles: - https://github.com/llvm/llvm-project/pull/131837 - https://github.com/llvm/llvm-project/pull/146320 - https://github.com/llvm/llvm-project/pull/146337
190 lines
6.1 KiB
LLVM
190 lines
6.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc < %s -mtriple=aarch64-none-elf | FileCheck %s
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; Check that the load in the loop has postindex addressing, regardless of the
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; type or whether the input uses postindex or offset addressing.
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define i32 @i32_initially_postidx(ptr %p, i64 %n) {
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; CHECK-LABEL: i32_initially_postidx:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: cmp x1, #1
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; CHECK-NEXT: b.lt .LBB0_5
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; CHECK-NEXT: // %bb.1: // %for.body.preheader
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; CHECK-NEXT: mov w8, wzr
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; CHECK-NEXT: .LBB0_2: // %for.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr w9, [x0], #4
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; CHECK-NEXT: add w8, w8, w9
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; CHECK-NEXT: cmp w8, #0
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; CHECK-NEXT: b.lo .LBB0_5
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; CHECK-NEXT: // %bb.3: // %for.inc
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; CHECK-NEXT: // in Loop: Header=BB0_2 Depth=1
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; CHECK-NEXT: subs x1, x1, #1
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; CHECK-NEXT: b.ne .LBB0_2
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; CHECK-NEXT: // %bb.4: // %cleanup
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; CHECK-NEXT: mov w0, w8
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; CHECK-NEXT: ret
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; CHECK-NEXT: .LBB0_5:
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; CHECK-NEXT: mov w8, wzr
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; CHECK-NEXT: mov w0, w8
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; CHECK-NEXT: ret
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entry:
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%cmp1 = icmp sgt i64 %n, 0
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br i1 %cmp1, label %for.body, label %cleanup
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for.body:
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%iv = phi i64 [ %iv.next, %for.inc ], [ 0, %entry ]
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%accum = phi i32 [ %add, %for.inc ], [ 0, %entry ]
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%ptr = phi ptr [ %ptr.next, %for.inc ], [ %p, %entry ]
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%val = load i32, ptr %ptr, align 4
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%ptr.next = getelementptr inbounds nuw i8, ptr %ptr, i64 4
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%add = add i32 %accum, %val
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%cmp2 = icmp ult i32 %add, 0
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br i1 %cmp2, label %cleanup, label %for.inc
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for.inc:
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, %n
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br i1 %exitcond, label %cleanup, label %for.body
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cleanup:
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%ret = phi i32 [ 0, %entry ], [ 0, %for.body ], [ %add, %for.inc ]
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ret i32 %ret
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}
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define i32 @i32_initially_offset(ptr %p, i64 %n) {
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; CHECK-LABEL: i32_initially_offset:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: cmp x1, #1
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; CHECK-NEXT: b.lt .LBB1_5
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; CHECK-NEXT: // %bb.1: // %for.body.preheader
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; CHECK-NEXT: mov w8, wzr
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; CHECK-NEXT: .LBB1_2: // %for.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr w9, [x0], #4
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; CHECK-NEXT: add w8, w8, w9
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; CHECK-NEXT: cmp w8, #0
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; CHECK-NEXT: b.lo .LBB1_5
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; CHECK-NEXT: // %bb.3: // %for.cond
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; CHECK-NEXT: // in Loop: Header=BB1_2 Depth=1
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; CHECK-NEXT: subs x1, x1, #1
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; CHECK-NEXT: b.ne .LBB1_2
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; CHECK-NEXT: // %bb.4: // %cleanup
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; CHECK-NEXT: mov w0, w8
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; CHECK-NEXT: ret
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; CHECK-NEXT: .LBB1_5:
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; CHECK-NEXT: mov w8, wzr
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; CHECK-NEXT: mov w0, w8
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; CHECK-NEXT: ret
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entry:
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%cmp1 = icmp sgt i64 %n, 0
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br i1 %cmp1, label %for.body, label %cleanup
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for.cond:
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, %n
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br i1 %exitcond, label %cleanup, label %for.body
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for.body:
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%iv = phi i64 [ %iv.next, %for.cond ], [ 0, %entry ]
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%accum = phi i32 [ %add, %for.cond ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds nuw i32, ptr %p, i64 %iv
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%val = load i32, ptr %arrayidx, align 4
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%add = add i32 %accum, %val
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%cmp2 = icmp ult i32 %add, 0
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br i1 %cmp2, label %cleanup, label %for.cond
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cleanup:
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%ret = phi i32 [ 0, %entry ], [ 0, %for.body ], [ %add, %for.cond ]
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ret i32 %ret
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}
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define float @float_initially_postidx(ptr %p, i64 %n) {
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; CHECK-LABEL: float_initially_postidx:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: movi d0, #0000000000000000
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; CHECK-NEXT: cmp x1, #1
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; CHECK-NEXT: b.lt .LBB2_3
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; CHECK-NEXT: .LBB2_1: // %for.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr s1, [x0], #4
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; CHECK-NEXT: fadd s0, s0, s1
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; CHECK-NEXT: fcmp s0, #0.0
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; CHECK-NEXT: b.mi .LBB2_4
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; CHECK-NEXT: // %bb.2: // %for.inc
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; CHECK-NEXT: // in Loop: Header=BB2_1 Depth=1
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; CHECK-NEXT: subs x1, x1, #1
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; CHECK-NEXT: b.ne .LBB2_1
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; CHECK-NEXT: .LBB2_3: // %cleanup
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; CHECK-NEXT: ret
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; CHECK-NEXT: .LBB2_4:
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; CHECK-NEXT: movi d0, #0000000000000000
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; CHECK-NEXT: ret
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entry:
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%cmp1 = icmp sgt i64 %n, 0
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br i1 %cmp1, label %for.body, label %cleanup
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for.body:
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%iv = phi i64 [ %iv.next, %for.inc ], [ 0, %entry ]
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%accum = phi float [ %add, %for.inc ], [ 0.000000e+00, %entry ]
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%ptr = phi ptr [ %ptr.next, %for.inc ], [ %p, %entry ]
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%val = load float, ptr %ptr, align 4
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%ptr.next = getelementptr inbounds nuw i8, ptr %ptr, i64 4
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%add = fadd float %accum, %val
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%cmp2 = fcmp olt float %add, 0.000000e+00
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br i1 %cmp2, label %cleanup, label %for.inc
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for.inc:
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, %n
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br i1 %exitcond, label %cleanup, label %for.body
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cleanup:
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%ret = phi float [ 0.000000e+00, %entry ], [ 0.000000e+00, %for.body ], [ %add, %for.inc ]
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ret float %ret
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}
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define float @float_initially_offset(ptr %p, i64 %n) {
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; CHECK-LABEL: float_initially_offset:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: movi d0, #0000000000000000
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; CHECK-NEXT: cmp x1, #1
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; CHECK-NEXT: b.lt .LBB3_3
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; CHECK-NEXT: .LBB3_1: // %for.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr s1, [x0], #4
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; CHECK-NEXT: fadd s0, s0, s1
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; CHECK-NEXT: fcmp s0, #0.0
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; CHECK-NEXT: b.mi .LBB3_4
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; CHECK-NEXT: // %bb.2: // %for.cond
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; CHECK-NEXT: // in Loop: Header=BB3_1 Depth=1
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; CHECK-NEXT: subs x1, x1, #1
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; CHECK-NEXT: b.ne .LBB3_1
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; CHECK-NEXT: .LBB3_3: // %cleanup
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; CHECK-NEXT: ret
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; CHECK-NEXT: .LBB3_4:
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; CHECK-NEXT: movi d0, #0000000000000000
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; CHECK-NEXT: ret
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entry:
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%cmp1 = icmp sgt i64 %n, 0
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br i1 %cmp1, label %for.body, label %cleanup
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for.cond:
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, %n
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br i1 %exitcond, label %cleanup, label %for.body
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for.body:
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%iv = phi i64 [ %iv.next, %for.cond ], [ 0, %entry ]
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%accum = phi float [ %add, %for.cond ], [ 0.000000e+00, %entry ]
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%arrayidx = getelementptr inbounds nuw float, ptr %p, i64 %iv
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%val = load float, ptr %arrayidx, align 4
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%add = fadd float %accum, %val
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%cmp2 = fcmp olt float %add, 0.000000e+00
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br i1 %cmp2, label %cleanup, label %for.cond
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cleanup:
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%ret = phi float [ 0.000000e+00, %entry ], [ 0.000000e+00, %for.body ], [ %add, %for.cond ]
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ret float %ret
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}
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