6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-05 13:26:55 +00:00
Code Issues Projects Releases Wiki Activity

AArch64: use default asm operand printing when modifier inapplicable

Browse Source 
If an inline assembly operand has multiple constraints (e.g. "Ir" for immediate
or register) and an operand modifier (E.g. "w" for "print register as wN") then
we need to decide behaviour when the modifier doesn't apply to the constraint.

Previousely produced some combination of an assertion failure and a fatal
error. GCC's behaviour appears to be to ignore the modifier and print the
operand in the default way. This patch should implement that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194024 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover
2013-11-04 23:04:07 +00:00
parent ba29378fdc
commit 627ef0cf5e
2 changed files with 88 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
test/CodeGen/AArch64/inline-asm-modifiers.ll
View File

@@ -22,6 +22,11 @@ define void @test_inline_modifier_L() nounwind {
; CHECK: ldr x0, [x0, #:gottprel_lo12:var_tlsie]
; CHECK: add x0, x0, #:tprel_lo12:var_tlsle
call void asm sideeffect "add x0, x0, ${0:L}", "Si,~{x0}"(i32 64)
call void asm sideeffect "ldr x0, [x0, ${0:L}]", "Si,~{x0}"(i32 64)
; CHECK: add x0, x0, #64
; CHECK: ldr x0, [x0, #64]
ret void
}
@@ -32,6 +37,8 @@ define void @test_inline_modifier_G() nounwind {
; CHECK: add x0, x0, #:dtprel_hi12:var_tlsld, lsl #12
; CHECK: add x0, x0, #:tprel_hi12:var_tlsle, lsl #12
call void asm sideeffect "add x0, x0, ${0:G}", "Si,~{x0}"(i32 42)
; CHECK: add x0, x0, #42
ret void
}
@@ -47,6 +54,9 @@ define void @test_inline_modifier_A() nounwind {
; CHECK: adrp x0, :tlsdesc:var_tlsgd
; CHECK: adrp x0, :gottprel:var_tlsie
call void asm sideeffect "adrp x0, ${0:A}", "Si,~{x0}"(i32 40)
; CHECK: adrp x0, #40
ret void
}
@@ -71,6 +81,12 @@ define void @test_inline_modifier_wx(i32 %small, i64 %big) nounwind {
call i32 asm sideeffect "add ${0:x}, ${1:x}, ${1:x}", "=r,r"(i32 0)
; CHECK: add {{w[0-9]+}}, wzr, wzr
; CHECK: add {{x[0-9]+}}, xzr, xzr
call i32 asm sideeffect "add ${0:w}, ${0:w}, ${1:w}", "=r,Ir,0"(i32 123, i32 %small)
call i64 asm sideeffect "add ${0:x}, ${0:x}, ${1:x}", "=r,Ir,0"(i32 456, i64 %big)
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, #123
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, #456
ret void
}
@@ -97,6 +113,18 @@ define void @test_inline_modifier_bhsdq() nounwind {
; CHECK: ldr s0, [sp]
; CHECK: ldr d0, [sp]
; CHECK: ldr q0, [sp]
call void asm sideeffect "fcmp b0, ${0:b}", "Yw"(float 0.0)
call void asm sideeffect "fcmp h0, ${0:h}", "Yw"(float 0.0)
call void asm sideeffect "fcmp s0, ${0:s}", "Yw"(float 0.0)
call void asm sideeffect "fcmp d0, ${0:d}", "Yw"(float 0.0)
call void asm sideeffect "fcmp q0, ${0:q}", "Yw"(float 0.0)
; CHECK: fcmp b0, #0
; CHECK: fcmp h0, #0
; CHECK: fcmp s0, #0
; CHECK: fcmp d0, #0
; CHECK: fcmp q0, #0
ret void
}
@@ -116,3 +144,4 @@ define void @test_inline_modifier_a() nounwind {
; CHECK: prfm pldl1keep, [x[[VARADDR]]]
ret void
}