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llvm-mirror/test/MC/AArch64/SVE/pfirst-diagnostics.s
Cullen Rhodes 899b2f53e8 [AArch64][AsmParser] error on unexpected SVE predicate type suffix
Summary:
This patch fixes a bug in the assembler that permitted a type suffix on
predicate registers when not expected. For instance, the following was
previously valid:

    faddv h0, p0.q, z1.h

This bug was present in all SVE instructions containing predicates with
no type suffix and no predication form qualifier, i.e. /z or /m. The
latter instructions are already caught with an appropiate error message
by the assembler, e.g.:

            .text
    <stdin>:1:13: error: not expecting size suffix
    cmpne p1.s, p0.b/z, z2.s, 0
                ^

A similar issue for SVE vector registers was fixed in:

  https://reviews.llvm.org/D59636

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D62942

llvm-svn: 362780
2019-06-07 08:46:56 +00:00

40 lines
1.3 KiB
ArmAsm

// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve 2>&1 < %s| FileCheck %s
// ------------------------------------------------------------------------- //
// Invalid predicate
pfirst p0.h, p15, p0.h
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
// CHECK-NEXT: pfirst p0.h, p15, p0.h
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
pfirst p0.b, p15/z, p0.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
// CHECK-NEXT: pfirst p0.b, p15/z, p0.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
pfirst p0.b, p15/m, p0.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
// CHECK-NEXT: pfirst p0.b, p15/m, p0.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
pfirst p0.b, p15.b, p0.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
// CHECK-NEXT: pfirst p0.b, p15.b, p0.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
pfirst p0.b, p15.q, p0.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
// CHECK-NEXT: pfirst p0.b, p15.q, p0.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// ------------------------------------------------------------------------- //
// Tied operands must match
pfirst p0.b, p15, p1.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must match destination register
// CHECK-NEXT: pfirst p0.b, p15, p1.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}: