derek.holloway
7502bf64a4
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203 lines
5.0 KiB
LLVM
203 lines
5.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=aarch64 < %s | FileCheck %s
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define void @bool_ne_1(ptr %p) {
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; CHECK-LABEL: bool_ne_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldrb w8, [x0]
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; CHECK-NEXT: cbnz w8, .LBB0_2
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; CHECK-NEXT: // %bb.1: // %if.else
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; CHECK-NEXT: b bar
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; CHECK-NEXT: .LBB0_2: // %if.then
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; CHECK-NEXT: b foo
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%v = load i8, ptr %p, align 1, !range !0, !noundef !1
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%cmp = icmp ne i8 %v, 1
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br i1 %cmp, label %if.else, label %if.then
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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define void @bool_ne_1_with_memcpy(ptr %this, ptr %v) {
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; CHECK-LABEL: bool_ne_1_with_memcpy:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldrb w8, [x0, #40]
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; CHECK-NEXT: ldr q0, [x1]
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; CHECK-NEXT: str q0, [x0]
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; CHECK-NEXT: cbz w8, .LBB1_2
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; CHECK-NEXT: // %bb.1: // %if.then
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; CHECK-NEXT: b foo
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; CHECK-NEXT: .LBB1_2: // %if.else
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; CHECK-NEXT: b bar
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%engaged = getelementptr inbounds nuw i8, ptr %this, i64 40
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%val = load i8, ptr %engaged, align 8, !range !0, !noundef !1
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%loadedv = trunc nuw i8 %val to i1
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tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %this, ptr noundef nonnull align 8 dereferenceable(40) %v, i64 16, i1 false)
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br i1 %loadedv, label %if.then, label %if.else
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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define void @bool_eq_1(ptr %p) {
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; CHECK-LABEL: bool_eq_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldrb w8, [x0]
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; CHECK-NEXT: cbz w8, .LBB2_2
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; CHECK-NEXT: // %bb.1: // %if.then
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; CHECK-NEXT: b foo
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; CHECK-NEXT: .LBB2_2: // %if.else
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; CHECK-NEXT: b bar
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%v = load i8, ptr %p, align 1, !range !0, !noundef !1
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%cmp = icmp eq i8 %v, 1
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br i1 %cmp, label %if.then, label %if.else
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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define void @bool_ne_1_i32(ptr %p) {
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; CHECK-LABEL: bool_ne_1_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldr w8, [x0]
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; CHECK-NEXT: cbnz w8, .LBB3_2
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; CHECK-NEXT: // %bb.1: // %if.else
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; CHECK-NEXT: b bar
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; CHECK-NEXT: .LBB3_2: // %if.then
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; CHECK-NEXT: b foo
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%v = load i32, ptr %p, align 4, !range !2, !noundef !1
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%cmp = icmp ne i32 %v, 1
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br i1 %cmp, label %if.else, label %if.then
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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define void @bool_eq_1_i32(ptr %p) {
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; CHECK-LABEL: bool_eq_1_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldr w8, [x0]
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; CHECK-NEXT: cbz w8, .LBB4_2
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; CHECK-NEXT: // %bb.1: // %if.then
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; CHECK-NEXT: b foo
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; CHECK-NEXT: .LBB4_2: // %if.else
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; CHECK-NEXT: b bar
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%v = load i32, ptr %p, align 4, !range !2, !noundef !1
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %if.then, label %if.else
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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; Negative test: value not in [0, 1]
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define void @not_bool_ne_1(ptr %p) {
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; CHECK-LABEL: not_bool_ne_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldrb w8, [x0]
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; CHECK-NEXT: cmp w8, #1
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; CHECK-NEXT: b.eq .LBB5_2
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; CHECK-NEXT: // %bb.1: // %if.then
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; CHECK-NEXT: b foo
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; CHECK-NEXT: .LBB5_2: // %if.else
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; CHECK-NEXT: b bar
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%v = load i8, ptr %p, align 1
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%cmp = icmp ne i8 %v, 1
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br i1 %cmp, label %if.then, label %if.else
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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; Negative test: conjunction tree should use CCMP chain, not CBZ.
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define void @conjunction_ccmp(ptr %x_ptr, ptr %y_ptr, ptr %z_ptr) {
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; CHECK-LABEL: conjunction_ccmp:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ldrh w8, [x1]
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; CHECK-NEXT: ldr w9, [x0]
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; CHECK-NEXT: cmp w8, #10
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; CHECK-NEXT: ccmp w9, #0, #0, ne
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; CHECK-NEXT: ccmp w8, #14, #4, ne
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; CHECK-NEXT: b.eq .LBB6_2
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; CHECK-NEXT: // %bb.1: // %if.then
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; CHECK-NEXT: str wzr, [x2]
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; CHECK-NEXT: .LBB6_2: // %common.ret
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; CHECK-NEXT: ret
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%x = load i32, ptr %x_ptr, align 4
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%cmp1 = icmp ne i32 %x, 0
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%y = load i16, ptr %y_ptr, align 2
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%cmp2 = icmp eq i16 %y, 10
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%or1 = select i1 %cmp1, i1 true, i1 %cmp2
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%cmp3 = icmp ne i16 %y, 14
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%or2 = select i1 %or1, i1 %cmp3, i1 false
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br i1 %or2, label %if.then, label %if.else
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if.then:
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store i32 0, ptr %z_ptr, align 8
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ret void
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if.else:
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ret void
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}
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; Negative test: overflow result should use direct flag-consuming branch
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define void @overflow_bool(i32 %a, i32 %b) {
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; CHECK-LABEL: overflow_bool:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cmn w0, w1
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; CHECK-NEXT: b.vc .LBB7_2
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; CHECK-NEXT: // %bb.1: // %if.then
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; CHECK-NEXT: b foo
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; CHECK-NEXT: .LBB7_2: // %if.else
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; CHECK-NEXT: b bar
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%res = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
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%ov = extractvalue {i32, i1} %res, 1
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br i1 %ov, label %if.then, label %if.else
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if.then:
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tail call void @foo()
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ret void
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if.else:
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tail call void @bar()
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ret void
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}
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declare void @foo()
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declare void @bar()
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declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
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!0 = !{i8 0, i8 2}
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!1 = !{}
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!2 = !{i32 0, i32 2}
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