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899b2f53e8
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
41 lines
1.6 KiB
ArmAsm
41 lines
1.6 KiB
ArmAsm
// RUN: not llvm-mc -triple=aarch64-none-linux-gnu -show-encoding -mattr=+sve 2>&1 < %s | FileCheck %s
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// ------------------------------------------------------------------------- //
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// Invalid predicate operand
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sel z0.b, p0.b, z0.b, z0.b
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// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
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// CHECK-NEXT: sel z0.b, p0.b, z0.b, z0.b
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// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
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sel z0.b, p0.q, z0.b, z0.b
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// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
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// CHECK-NEXT: sel z0.b, p0.q, z0.b, z0.b
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// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
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sel p0.b, p0.b, p0.b, p0.b
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// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
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// CHECK-NEXT: sel p0.b, p0.b, p0.b, p0.b
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// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
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sel p0.b, p0.q, p0.b, p0.b
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// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate register
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// CHECK-NEXT: sel p0.b, p0.q, p0.b, p0.b
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// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
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// --------------------------------------------------------------------------//
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// Negative tests for instructions that are incompatible with movprfx
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movprfx z28.b, p7/z, z30.b
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sel z28.b, p7, z13.b, z8.b
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// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: instruction is unpredictable when following a movprfx, suggest replacing movprfx with mov
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// CHECK-NEXT: sel z28.b, p7, z13.b, z8.b
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// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
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movprfx z23, z30
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sel z23.b, p11, z13.b, z8.b
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// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: instruction is unpredictable when following a movprfx, suggest replacing movprfx with mov
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// CHECK-NEXT: sel z23.b, p11, z13.b, z8.b
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// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
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