[llvm-branch-commits] [llvm] [AArch64][llvm] Armv9.7-A: Add support for SVE2p3 CVT operations (PR #163162)

Jonathan Thackray via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Wed Oct 22 11:00:52 PDT 2025


================
@@ -0,0 +1,193 @@
+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2p3 2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+// Invalid operand for instruction
+
+fcvtzsn z0.b, { z0.b, z1.b }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: fcvtzsn z0.b, { z0.b, z1.b }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fcvtzsn z0.h, { z0.h, z1.h }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: fcvtzsn z0.h, { z0.h, z1.h }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fcvtzsn z0.s, { z0.s, z1.s }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: fcvtzsn z0.s, { z0.s, z1.s }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fcvtzsn z0.b, { z1.h, z2.h }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors, where the first vector is a multiple of 2 and with matching element types
+// CHECK-NEXT: fcvtzsn z0.b, { z1.h, z2.h }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Negative tests for instructions that are incompatible with movprfx
+
+movprfx z0, z7
+fcvtzsn z0.b, { z0.h, z1.h }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: instruction is unpredictable when following a movprfx, suggest replacing movprfx with mov
+// CHECK-NEXT: fcvtzsn z0.b, { z0.h, z1.h }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Invalid operand for instruction
+
+fcvtzun z0.b, { z0.b, z1.b }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: fcvtzun z0.b, { z0.b, z1.b }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fcvtzun z0.h, { z0.h, z1.h }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: fcvtzun z0.h, { z0.h, z1.h }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fcvtzun z0.s, { z0.s, z1.s }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: fcvtzun z0.s, { z0.s, z1.s }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fcvtzun z0.b, { z1.h, z2.h }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors, where the first vector is a multiple of 2 and with matching element types
+// CHECK-NEXT: fcvtzun z0.b, { z1.h, z2.h }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Negative tests for instructions that are incompatible with movprfx
+
+movprfx z0, z7
+fcvtzun z0.b, { z0.h, z1.h }
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: instruction is unpredictable when following a movprfx, suggest replacing movprfx with mov
+// CHECK-NEXT: fcvtzun z0.b, { z0.h, z1.h }
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+scvtf z0.b, z0.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtf z0.b, z0.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+scvtf z0.h, z0.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtf z0.h, z0.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+scvtf z0.s, z0.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtf z0.s, z0.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+scvtf z0.d, z0.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtf z0.d, z0.d
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Negative tests for instructions that are incompatible with movprfx
+
+movprfx z0, z7
+scvtf z0.h, z0.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: instruction is unpredictable when following a movprfx, suggest replacing movprfx with mov
+// CHECK-NEXT: scvtf z0.h, z0.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+scvtflt z0.b, z0.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtflt z0.b, z0.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+scvtflt z0.h, z0.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtflt z0.h, z0.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+scvtflt z0.s, z0.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtflt z0.s, z0.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+scvtflt z0.d, z0.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: scvtflt z0.d, z0.d
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Negative tests for instructions that are incompatible with movprfx
+
+movprfx z0, z7
+scvtflt z0.h, z0.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: instruction is unpredictable when following a movprfx, suggest replacing movprfx with mov
+// CHECK-NEXT: scvtflt z0.h, z0.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+ucvtf z0.b, z0.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ucvtf z0.b, z0.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+ucvtf z0.h, z0.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ucvtf z0.h, z0.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+ucvtf z0.s, z0.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ucvtf z0.s, z0.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+ucvtf z0.d, z0.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ucvtf z0.d, z0.d
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+// Negative tests for instructions that are incompatible with movprfx
+
+movprfx z0, z7
+ucvtf z0.h, z0.b
----------------
jthackray wrote:

Done.

https://github.com/llvm/llvm-project/pull/163162


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