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Merge pull request #2363 from cfallin/extend-only-if-abi

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Do value-extensions at ABI boundaries only when ABI requires it.
This commit is contained in:
Chris Fallin
2020-11-12 12:26:20 -08:00
committed by GitHub
parent fd6433aaf5 a2bbb198de
commit 89dbc4590d
7 changed files with 98 additions and 47 deletions
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37
cranelift/filetests/filetests/isa/aarch64/call.clif
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@@ -1,4 +1,5 @@
test compile
set enable_probestack=false
target aarch64
function %f1(i64) -> i64 {
@@ -18,7 +19,7 @@ block0(v0: i64):
; nextln: ret
function %f2(i32) -> i64 {
fn0 = %g(i32 uext) -> i64
fn0 = %g(i32 uext) -> i64 baldrdash_system_v
block0(v0: i32):
v1 = call fn0(v0)
@@ -27,27 +28,22 @@ block0(v0: i32):
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: mov w0, w0
; check: mov w0, w0
; nextln: ldr x1, 8 ; b 12 ; data
; nextln: blr x1
; nextln: mov sp, fp
; check: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %f3(i32) -> i32 uext {
function %f3(i32) -> i32 uext baldrdash_system_v {
block0(v0: i32):
return v0
}
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: mov w0, w0
; nextln: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
; check: mov w0, w0
function %f4(i32) -> i64 {
fn0 = %g(i32 sext) -> i64
fn0 = %g(i32 sext) -> i64 baldrdash_system_v
block0(v0: i32):
v1 = call fn0(v0)
@@ -56,24 +52,19 @@ block0(v0: i32):
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: sxtw x0, w0
; check: sxtw x0, w0
; nextln: ldr x1, 8 ; b 12 ; data
; nextln: blr x1
; nextln: mov sp, fp
; check: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %f5(i32) -> i32 sext {
function %f5(i32) -> i32 sext baldrdash_system_v {
block0(v0: i32):
return v0
}
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: sxtw x0, w0
; nextln: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
; check: sxtw x0, w0
function %f6(i8) -> i64 {
fn0 = %g(i32, i32, i32, i32, i32, i32, i32, i32, i8 sext) -> i64
@@ -97,8 +88,7 @@ block0(v0: i8):
; nextln: movz x5, #42
; nextln: movz x6, #42
; nextln: movz x7, #42
; nextln: sxtb x8, w8
; nextln: stur x8, [sp]
; nextln: sturb w8, [sp]
; nextln: ldr x8, 8 ; b 12 ; data
; nextln: blr x8
; nextln: add sp, sp, #16
@@ -125,8 +115,7 @@ block0(v0: i8):
; nextln: movz x5, #42
; nextln: movz x6, #42
; nextln: movz x7, #42
; nextln: sxtb x9, w9
; nextln: stur x9, [x8]
; nextln: sturb w9, [x8]
; nextln: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret